diff --git a/src/aare/beamline_dispatch/x10sa/beamline_dispatch.py b/src/aare/beamline_dispatch/x10sa/beamline_dispatch.py
index c46e1dbe..f1025b87 100644
--- a/src/aare/beamline_dispatch/x10sa/beamline_dispatch.py
+++ b/src/aare/beamline_dispatch/x10sa/beamline_dispatch.py
@@ -128,4 +128,5 @@ class X10saDispatch(DefaultDispatch):
 
     @property
     def default_auto_raster_parameters(self) -> dict[str, Any]:
+        # Full transmission for 20 keV rastering
         return {"exp_time_s": 0.02, "transmission": 1.0, "dtz": 200}