Both the AZ and ALT motors work as expected using the HC, at all slew speeds.
My problem is (way maybe) intermitted, it would start slewing in AZ (clockwise) on its own, with nobody touching anything.? The last time I left the scope tracking an object and went inside to give a presentation, came back out an hour later and the scope was pointing in a very different direction and the battery was down.? That's why I wanted to put it in EasyTrack and let it sit and see if it was re-creatable.