Thanks guys. Very informative.
Lintond, I do have the 2.32 firmware installed on the Ultra. I think it has to be the motor though because no matter what I do when I hit the Go to Reference it should go back to 0 position but it doesn't. It goes to 0 then moves west to 15 :? And when I try to use USALS it doesn't move to the right spot.
I ordered a
Stab HH120 today and it will be here tomorrow. I'll post my results with that on both receivers.