diff --git a/.github/tests/mix-public.yaml b/.github/tests/mix-public.yaml
index 9f75aa72a..ed656fff0 100644
--- a/.github/tests/mix-public.yaml
+++ b/.github/tests/mix-public.yaml
@@ -40,8 +40,6 @@ additional_services:
   - dora
   - prometheus
   - grafana
-  - custom_flood
-  - blobscan
   - dugtrio
   - erpc
   - apache
diff --git a/.github/tests/mix-with-tools.yaml b/.github/tests/mix-with-tools.yaml
index 16a2f557d..23c751864 100644
--- a/.github/tests/mix-with-tools.yaml
+++ b/.github/tests/mix-with-tools.yaml
@@ -19,8 +19,6 @@ additional_services:
   - dora
   - prometheus
   - grafana
-  - custom_flood
-  - blobscan
   - dugtrio
   - erpc
   - apache
diff --git a/README.md b/README.md
index 7683b9b7f..df7832853 100644
--- a/README.md
+++ b/README.md
@@ -490,6 +490,10 @@ participants:
     # Defaults null and then set to default global keymanager_enabled (false)
     keymanager_enabled: null
 
+    # Per-participant override for checkpoint sync. If set, this will override the global checkpoint_sync_enabled flag for this participant.
+    # Defaults to null (uses global checkpoint_sync_enabled setting)
+    checkpoint_sync_enabled: null
+
 # Participants matrix creates a participant for each combination of EL, CL and VC clients
 # Each EL/CL/VC item can provide the same parameters as a standard participant
 participants_matrix: {}
@@ -1173,6 +1177,7 @@ global_node_selectors: {}
 keymanager_enabled: false
 
 # Global flag to enable checkpoint sync across the network
+# Default to false
 checkpoint_sync_enabled: false
 
 # Global flag to set checkpoint sync url
diff --git a/src/cl/cl_launcher.star b/src/cl/cl_launcher.star
index 535791522..7d884d570 100644
--- a/src/cl/cl_launcher.star
+++ b/src/cl/cl_launcher.star
@@ -181,7 +181,11 @@ def launch(
                 )
             )
         checkpoint_sync_url = args_with_right_defaults.checkpoint_sync_url
-        if args_with_right_defaults.checkpoint_sync_enabled:
+        # Use participant-level checkpoint_sync_enabled if set, otherwise use global
+        checkpoint_sync_enabled = args_with_right_defaults.checkpoint_sync_enabled
+        if participant.checkpoint_sync_enabled != None:
+            checkpoint_sync_enabled = participant.checkpoint_sync_enabled
+        if checkpoint_sync_enabled:
             if args_with_right_defaults.checkpoint_sync_url == "":
                 if (
                     network_params.network in constants.PUBLIC_NETWORKS
@@ -218,7 +222,7 @@ def launch(
                 persistent,
                 tolerations,
                 node_selectors,
-                args_with_right_defaults.checkpoint_sync_enabled,
+                checkpoint_sync_enabled,
                 checkpoint_sync_url,
                 args_with_right_defaults.port_publisher,
                 index,
@@ -268,7 +272,7 @@ def launch(
                 persistent,
                 tolerations,
                 node_selectors,
-                args_with_right_defaults.checkpoint_sync_enabled,
+                checkpoint_sync_enabled,
                 checkpoint_sync_url,
                 args_with_right_defaults.port_publisher,
                 index,
diff --git a/src/package_io/input_parser.star b/src/package_io/input_parser.star
index 9f5bbfd0a..d43c18c8f 100644
--- a/src/package_io/input_parser.star
+++ b/src/package_io/input_parser.star
@@ -423,6 +423,7 @@ def input_parser(plan, input_args):
                 blobber_image=participant["blobber_image"],
                 keymanager_enabled=participant["keymanager_enabled"],
                 vc_beacon_node_indices=participant["vc_beacon_node_indices"],
+                checkpoint_sync_enabled=participant["checkpoint_sync_enabled"],
             )
             for participant in result["participants"]
         ],
@@ -1402,6 +1403,7 @@ def default_participant():
         "builder_network_params": None,
         "keymanager_enabled": None,
         "vc_beacon_node_indices": None,
+        "checkpoint_sync_enabled": None,
     }
 
 
diff --git a/src/package_io/sanity_check.star b/src/package_io/sanity_check.star
index 0ce8812a0..eb7a2fae2 100644
--- a/src/package_io/sanity_check.star
+++ b/src/package_io/sanity_check.star
@@ -65,6 +65,7 @@ PARTICIPANT_CATEGORIES = {
         "builder_network_params",
         "keymanager_enabled",
         "vc_beacon_node_indices",
+        "checkpoint_sync_enabled",
     ],
 }
 
@@ -116,6 +117,7 @@ PARTICIPANT_MATRIX_PARAMS = {
             "count",
             "supernode",
             "vc_beacon_node_indices",
+            "checkpoint_sync_enabled",
         ],
         "vc": [
             "vc_type",