diff --git a/spp_grm/views/res_partner_views.xml b/spp_grm/views/res_partner_views.xml
index d69eea57..84464127 100644
--- a/spp_grm/views/res_partner_views.xml
+++ b/spp_grm/views/res_partner_views.xml
@@ -22,28 +22,6 @@
         </field>
     </record>
 
-    <!-- Group Registrant form -->
-    <record id="view_groups_form_inherit_spp_grm" model="ir.ui.view">
-        <field name="name">view_groups_form_inherit_spp_grm</field>
-        <field name="model">res.partner</field>
-        <field name="inherit_id" ref="spp_registry.view_individuals_form" />
-        <field name="arch" type="xml">
-            <xpath expr="//div[@name='button_box']" position="inside">
-                <button
-                    context="{'search_default_open': True, 'default_partner_id': id}"
-                    name="action_view_grm_tickets"
-                    type="object"
-                    class="oe_stat_button"
-                    icon="fa-life-ring"
-                >
-                    <field invisible="True" name="grm_ticket_active_count" />
-                    <field invisible="True" name="grm_ticket_count" />
-                    <field name="grm_ticket_count_string" widget="statinfo" />
-                </button>
-            </xpath>
-        </field>
-    </record>
-
     <!-- Default partner form -->
     <record id="view_partner_form" model="ir.ui.view">
         <field name="name">view_partner_form</field>
diff --git a/spp_grm_registry/models/res_partner.py b/spp_grm_registry/models/res_partner.py
index 9a23a7de..bb11211b 100644
--- a/spp_grm_registry/models/res_partner.py
+++ b/spp_grm_registry/models/res_partner.py
@@ -54,7 +54,7 @@ def action_view_grm_registrant_tickets(self):
             "type": "ir.actions.act_window",
             "name": "GRM Tickets (Registrant)",
             "res_model": "spp.grm.ticket",
-            "view_mode": "tree,form,kanban",
+            "view_mode": "list,form,kanban",
             "domain": [("registrant_id", "=", self.id)],
             "context": {"default_registrant_id": self.id},
         }
@@ -66,7 +66,7 @@ def action_view_grm_household_tickets(self):
             "type": "ir.actions.act_window",
             "name": "GRM Tickets (Household)",
             "res_model": "spp.grm.ticket",
-            "view_mode": "tree,form,kanban",
+            "view_mode": "list,form,kanban",
             "domain": [("household_id", "=", self.id)],
             "context": {"default_household_id": self.id},
         }
diff --git a/spp_grm_registry/tests/test_res_partner.py b/spp_grm_registry/tests/test_res_partner.py
index aedc7591..4980e6ed 100644
--- a/spp_grm_registry/tests/test_res_partner.py
+++ b/spp_grm_registry/tests/test_res_partner.py
@@ -226,10 +226,11 @@ def test_action_view_registrant_tickets_context(self):
         self.assertEqual(action["context"]["default_registrant_id"], self.registrant.id)
 
     def test_action_view_registrant_tickets_view_mode(self):
-        """action_view_grm_registrant_tickets exposes tree, form, and kanban views."""
+        """action_view_grm_registrant_tickets exposes list, form, and kanban views."""
         action = self.registrant.action_view_grm_registrant_tickets()
-        for mode in ("tree", "form", "kanban"):
+        for mode in ("list", "form", "kanban"):
             self.assertIn(mode, action["view_mode"])
+        self.assertNotIn("tree", action["view_mode"])
 
     # ------------------------------------------------------------------ #
     # action_view_grm_household_tickets                                   #
@@ -256,7 +257,8 @@ def test_action_view_household_tickets_context(self):
         self.assertEqual(action["context"]["default_household_id"], self.household.id)
 
     def test_action_view_household_tickets_view_mode(self):
-        """action_view_grm_household_tickets exposes tree, form, and kanban views."""
+        """action_view_grm_household_tickets exposes list, form, and kanban views."""
         action = self.household.action_view_grm_household_tickets()
-        for mode in ("tree", "form", "kanban"):
+        for mode in ("list", "form", "kanban"):
             self.assertIn(mode, action["view_mode"])
+        self.assertNotIn("tree", action["view_mode"])
diff --git a/spp_grm_registry/views/res_partner_views.xml b/spp_grm_registry/views/res_partner_views.xml
index 0b2087a3..076f2903 100644
--- a/spp_grm_registry/views/res_partner_views.xml
+++ b/spp_grm_registry/views/res_partner_views.xml
@@ -15,10 +15,11 @@
                     icon="fa-ticket"
                     invisible="is_group or not is_registrant"
                 >
-                    <div class="o_stat_info">
-                        <field name="grm_registrant_ticket_count" widget="statinfo" />
-                        <span class="o_stat_text">GRM Tickets</span>
-                    </div>
+                    <field
+                        name="grm_registrant_ticket_count"
+                        widget="statinfo"
+                        string="GRM Tickets"
+                    />
                 </button>
             </xpath>
 
@@ -77,10 +78,11 @@
                     icon="fa-ticket"
                     invisible="not is_group or not is_registrant"
                 >
-                    <div class="o_stat_info">
-                        <field name="grm_household_ticket_count" widget="statinfo" />
-                        <span class="o_stat_text">GRM Tickets</span>
-                    </div>
+                    <field
+                        name="grm_household_ticket_count"
+                        widget="statinfo"
+                        string="GRM Tickets"
+                    />
                 </button>
             </xpath>
 
@@ -120,4 +122,21 @@
             </xpath>
         </field>
     </record>
+
+    <!--
+        OP#1000: when spp_grm_registry is installed, its registrant + household
+        buttons replace the legacy single-button view from spp_grm. Hide the
+        legacy button on registrant forms so only the registry-specific buttons
+        remain. spp_grm's view on the base partner form (for plain partners)
+        is untouched.
+    -->
+    <record id="view_res_partner_form_hide_legacy_grm_button" model="ir.ui.view">
+        <field name="name">res.partner.form.hide-legacy-grm-button</field>
+        <field name="model">res.partner</field>
+        <field name="inherit_id" ref="spp_grm.view_individuals_form_inherit_spp_grm" />
+        <field name="priority">99</field>
+        <field name="arch" type="xml">
+            <button name="action_view_grm_tickets" position="replace" />
+        </field>
+    </record>
 </odoo>