diff --git a/bench/flt-full-k10.json b/bench/flt-full-k10.json
new file mode 100644
index 00000000000..08aa821f92a
--- /dev/null
+++ b/bench/flt-full-k10.json
@@ -0,0 +1,25 @@
+[ { "tag": "CSlot"
+  , "contents":
+    { "tag": "EpochGEq"
+    , "contents": 2
+    }
+  }
+, { "tag": "CSlot"
+  , "contents":
+    { "tag": "SlotLEq"
+    , "contents": 37000
+    }
+  }
+, { "tag": "CBlock"
+  , "contents":
+    { "tag": "BUnitaryChainDelta"
+    , "contents": true
+    }
+  }
+, { "tag": "CBlock"
+  , "contents":
+    { "tag": "BFullnessGEq"
+    , "contents": 0.9
+    }
+  }
+]
diff --git a/bench/flt-full.json b/bench/flt-full.json
index 8f4365ab709..297ded2bc76 100644
--- a/bench/flt-full.json
+++ b/bench/flt-full.json
@@ -1,13 +1,13 @@
 [ { "tag": "CSlot"
   , "contents":
     { "tag": "EpochGEq"
-    , "contents": 3
+    , "contents": 2
     }
   }
 , { "tag": "CSlot"
   , "contents":
     { "tag": "SlotLEq"
-    , "contents": 37000
+    , "contents": 56000
     }
   }
 , { "tag": "CBlock"
diff --git a/bench/flt-midsize.json b/bench/flt-midsize.json
index f21af6bcb0f..da612d78506 100644
--- a/bench/flt-midsize.json
+++ b/bench/flt-midsize.json
@@ -1,13 +1,13 @@
 [ { "tag": "CSlot"
   , "contents":
     { "tag": "EpochGEq"
-    , "contents": 3
+    , "contents": 2
     }
   }
 , { "tag": "CSlot"
   , "contents":
     { "tag": "SlotLEq"
-    , "contents": 37000
+    , "contents": 56000
     }
   }
 , { "tag": "CBlock"
diff --git a/bench/flt-range.json b/bench/flt-range.json
index 4f1bdccfb51..cb950994d4e 100644
--- a/bench/flt-range.json
+++ b/bench/flt-range.json
@@ -1,13 +1,13 @@
 [ { "tag": "CSlot"
   , "contents":
     { "tag": "EpochGEq"
-    , "contents": 3
+    , "contents": 2
     }
   }
 , { "tag": "CSlot"
   , "contents":
     { "tag": "SlotLEq"
-    , "contents": 37000
+    , "contents": 56000
     }
   }
 , { "tag": "CBlock"