diff --git a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
index 23fece289011..e6033bb2d710 100644
--- a/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
+++ b/lighthouse-cli/test/cli/__snapshots__/index-test.js.snap
@@ -387,42 +387,42 @@ Object {
         Object {
           "group": "a11y-aria",
           "id": "aria-allowed-attr",
-          "weight": 3,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-required-attr",
-          "weight": 2,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-required-children",
-          "weight": 5,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-required-parent",
-          "weight": 2,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-roles",
-          "weight": 3,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-valid-attr-value",
-          "weight": 2,
+          "weight": 10,
         },
         Object {
           "group": "a11y-aria",
           "id": "aria-valid-attr",
-          "weight": 5,
+          "weight": 10,
         },
         Object {
           "group": "a11y-audio-video",
           "id": "audio-caption",
-          "weight": 4,
+          "weight": 10,
         },
         Object {
           "group": "a11y-names-labels",
@@ -432,57 +432,57 @@ Object {
         Object {
           "group": "a11y-navigation",
           "id": "bypass",
-          "weight": 10,
+          "weight": 3,
         },
         Object {
           "group": "a11y-color-contrast",
           "id": "color-contrast",
-          "weight": 6,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "definition-list",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "dlitem",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "document-title",
-          "weight": 2,
+          "weight": 3,
         },
         Object {
           "group": "a11y-best-practices",
           "id": "duplicate-id",
-          "weight": 5,
+          "weight": 1,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "frame-title",
-          "weight": 5,
+          "weight": 3,
         },
         Object {
           "group": "a11y-language",
           "id": "html-has-lang",
-          "weight": 4,
+          "weight": 3,
         },
         Object {
           "group": "a11y-language",
           "id": "html-lang-valid",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "image-alt",
-          "weight": 8,
+          "weight": 10,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "input-image-alt",
-          "weight": 1,
+          "weight": 10,
         },
         Object {
           "group": "a11y-names-labels",
@@ -492,67 +492,67 @@ Object {
         Object {
           "group": "a11y-tables-lists",
           "id": "layout-table",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "link-name",
-          "weight": 9,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "list",
-          "weight": 5,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "listitem",
-          "weight": 4,
+          "weight": 3,
         },
         Object {
           "group": "a11y-best-practices",
           "id": "meta-refresh",
-          "weight": 1,
+          "weight": 10,
         },
         Object {
           "group": "a11y-best-practices",
           "id": "meta-viewport",
-          "weight": 3,
+          "weight": 10,
         },
         Object {
           "group": "a11y-names-labels",
           "id": "object-alt",
-          "weight": 4,
+          "weight": 3,
         },
         Object {
           "group": "a11y-navigation",
           "id": "tabindex",
-          "weight": 4,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "td-headers-attr",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-tables-lists",
           "id": "th-has-data-cells",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-language",
           "id": "valid-lang",
-          "weight": 1,
+          "weight": 3,
         },
         Object {
           "group": "a11y-audio-video",
           "id": "video-caption",
-          "weight": 4,
+          "weight": 10,
         },
         Object {
           "group": "a11y-audio-video",
           "id": "video-description",
-          "weight": 3,
+          "weight": 10,
         },
         Object {
           "id": "logical-tab-order",
diff --git a/lighthouse-core/test/results/sample_v2.json b/lighthouse-core/test/results/sample_v2.json
index 5dcc450329b7..6147aea7f56d 100644
--- a/lighthouse-core/test/results/sample_v2.json
+++ b/lighthouse-core/test/results/sample_v2.json
@@ -3298,12 +3298,12 @@
         },
         {
           "id": "bypass",
-          "weight": 10,
+          "weight": 3,
           "group": "a11y-navigation"
         },
         {
           "id": "color-contrast",
-          "weight": 6,
+          "weight": 3,
           "group": "a11y-color-contrast"
         },
         {
@@ -3318,12 +3318,12 @@
         },
         {
           "id": "document-title",
-          "weight": 2,
+          "weight": 3,
           "group": "a11y-names-labels"
         },
         {
           "id": "duplicate-id",
-          "weight": 5,
+          "weight": 1,
           "group": "a11y-best-practices"
         },
         {
@@ -3333,7 +3333,7 @@
         },
         {
           "id": "html-has-lang",
-          "weight": 4,
+          "weight": 3,
           "group": "a11y-language"
         },
         {
@@ -3343,7 +3343,7 @@
         },
         {
           "id": "image-alt",
-          "weight": 8,
+          "weight": 10,
           "group": "a11y-names-labels"
         },
         {
@@ -3363,7 +3363,7 @@
         },
         {
           "id": "link-name",
-          "weight": 9,
+          "weight": 3,
           "group": "a11y-names-labels"
         },
         {
@@ -3383,12 +3383,12 @@
         },
         {
           "id": "meta-viewport",
-          "weight": 3,
+          "weight": 10,
           "group": "a11y-best-practices"
         },
         {
           "id": "object-alt",
-          "weight": 4,
+          "weight": 3,
           "group": "a11y-names-labels"
         },
         {
@@ -3467,7 +3467,7 @@
         }
       ],
       "id": "accessibility",
-      "score": 0.36
+      "score": 0.38
     },
     "best-practices": {
       "title": "Best Practices",
diff --git a/proto/sample_v2_round_trip.json b/proto/sample_v2_round_trip.json
index 484900f1070c..44fc911c4a23 100644
--- a/proto/sample_v2_round_trip.json
+++ b/proto/sample_v2_round_trip.json
@@ -3050,12 +3050,12 @@
                 {
                     "group": "a11y-navigation", 
                     "id": "bypass", 
-                    "weight": 10.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-color-contrast", 
                     "id": "color-contrast", 
-                    "weight": 6.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-tables-lists", 
@@ -3070,12 +3070,12 @@
                 {
                     "group": "a11y-names-labels", 
                     "id": "document-title", 
-                    "weight": 2.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-best-practices", 
                     "id": "duplicate-id", 
-                    "weight": 5.0
+                    "weight": 1.0
                 }, 
                 {
                     "group": "a11y-names-labels", 
@@ -3085,7 +3085,7 @@
                 {
                     "group": "a11y-language", 
                     "id": "html-has-lang", 
-                    "weight": 4.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-language", 
@@ -3095,7 +3095,7 @@
                 {
                     "group": "a11y-names-labels", 
                     "id": "image-alt", 
-                    "weight": 8.0
+                    "weight": 10.0
                 }, 
                 {
                     "group": "a11y-names-labels", 
@@ -3115,7 +3115,7 @@
                 {
                     "group": "a11y-names-labels", 
                     "id": "link-name", 
-                    "weight": 9.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-tables-lists", 
@@ -3135,12 +3135,12 @@
                 {
                     "group": "a11y-best-practices", 
                     "id": "meta-viewport", 
-                    "weight": 3.0
+                    "weight": 10.0
                 }, 
                 {
                     "group": "a11y-names-labels", 
                     "id": "object-alt", 
-                    "weight": 4.0
+                    "weight": 3.0
                 }, 
                 {
                     "group": "a11y-navigation", 
@@ -3220,7 +3220,7 @@
             "description": "These checks highlight opportunities to [improve the accessibility of your web app](https://developers.google.com/web/fundamentals/accessibility). Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged.", 
             "id": "accessibility", 
             "manualDescription": "These items address areas which an automated testing tool cannot cover. Learn more in our guide on [conducting an accessibility review](https://developers.google.com/web/fundamentals/accessibility/how-to-review).", 
-            "score": 0.36, 
+            "score": 0.38, 
             "title": "Accessibility"
         }, 
         "best-practices": {