diff --git a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
index 92c071471..16ce8983f 100755
--- a/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
+++ b/src/hyperion/experiment_plans/flyscan_xray_centre_plan.py
@@ -129,6 +129,7 @@ def flyscan_xray_centre(
     """
     parameters.features.update_self_from_server()
     composite.eiger.set_detector_parameters(parameters.detector_params)
+    composite.zocalo.use_fastest_zocalo_result = parameters.use_fastest_zocalo_result
     composite.zocalo.zocalo_environment = parameters.zocalo_environment
 
     feature_controlled = _get_feature_controlled(composite, parameters)
diff --git a/src/hyperion/parameters/constants.py b/src/hyperion/parameters/constants.py
index 98539b5c3..9e0918d73 100644
--- a/src/hyperion/parameters/constants.py
+++ b/src/hyperion/parameters/constants.py
@@ -106,6 +106,7 @@ class I03Constants:
     SHUTTER_TIME_S = 0.06
     USE_PANDA_FOR_GRIDSCAN = False
     USE_GPU_FOR_GRIDSCAN_ANALYSIS = False
+    USE_FASTEST_ZOCALO_RESULT = False
     THAWING_TIME = 20
 
 
diff --git a/src/hyperion/parameters/gridscan.py b/src/hyperion/parameters/gridscan.py
index 778b01c90..6968fe609 100644
--- a/src/hyperion/parameters/gridscan.py
+++ b/src/hyperion/parameters/gridscan.py
@@ -40,7 +40,11 @@ class GridCommon(
         default=CONST.HARDWARE.PANDA_FGS_RUN_UP_DEFAULT
     )
     use_panda: bool = Field(default=CONST.I03.USE_PANDA_FOR_GRIDSCAN)
+
     use_gpu: bool = Field(default=CONST.I03.USE_GPU_FOR_GRIDSCAN_ANALYSIS)
+
+    use_fastest_zocalo_result: bool = Field(default=CONST.I03.USE_FASTEST_ZOCALO_RESULT)
+
     ispyb_experiment_type: IspybExperimentType = Field(
         default=IspybExperimentType.GRIDSCAN_3D
     )