diff --git a/src/aare/daq/daq.py b/src/aare/daq/daq.py
index 33a4164f..f41cadad 100644
--- a/src/aare/daq/daq.py
+++ b/src/aare/daq/daq.py
@@ -1394,7 +1394,7 @@ class AareDAQ:
         if request.screening:
             if request.wedge_omega_deg is None:
                 raise ValueError("Must supply a wedge angle for screening requests")
-            self._devs.aerotech.screening_scan_validation(
+            self._devs.aerotech.validate_screening_scan(
                 rotation_deg=request.incr_omega_deg,
                 wedge_deg=request.wedge_omega_deg,
                 time_sec=total_time,
diff --git a/src/aare/devices/aerotech.py b/src/aare/devices/aerotech.py
index 10d1d402..45da1694 100644
--- a/src/aare/devices/aerotech.py
+++ b/src/aare/devices/aerotech.py
@@ -256,8 +256,8 @@ class AerotechController:
         grid_elem_count_y: int,
         grid_elem_size_y_um: float,
         time_sec: float,
-        grid_elem_size_x_um: float | None = None,
-        grid_elem_count_x: int | None = None,
+        grid_elem_size_x_um: float,
+        grid_elem_count_x: int,
         run_async: bool | None = False,
     ):
         payload = GridRequest(
@@ -309,7 +309,7 @@ class AerotechController:
                 operation="POST",
             ) from e
 
-    def screening_scan_validation(
+    def validate_screening_scan(
         self,
         rotation_deg: float,
         wedge_deg: float,