Actually, based on your previous suggestion I sent my autopilot in for an upgrade and got it back last week. I was hoping that that might make a difference but unfortunately, not so.

So I'm thinking that it's not a trutrak issue since it performs flawlessly on its own. Somehow, either my setting on the 4500 are wrong or I have a bigger problem. I'm using the setting suggested on the manual but can't seem to tell where I need to adjust them.

I may call Lucas anyway..