AP900GTO Goto Accuracy

Can anyone comment on the goto accuracy of the AP900GTO mount? I have an AP900GTO mount from a 2006 production run and have been struggling with getting the goto to work accurately. Of course I've done the required polar alignment and either a one or two star alignment. The tracking on the mount is terrific with very low periodic error.

I may be dealing with orthoganality issues (AP 130 EDT, Losmandy Rings/Plate), but I need to sync on a nearby star (about 10 degrees) before going to my object. This usually puts the object in the eyepiece (16mm Nagler) but not in the center - near the outer edge. Putting an object on a small chip (DSI/ST-7XME) is going to be really tough. Without a sync, goto is worse -- sometimes the object is in the field, sometimes not. The mount is setup as a portable mount (not permanently mounted). I would also like to avoid running TPOINT if possible.

Any feedback would be greatly appreciated --

My older GTOCP1 is fantastic with a nearly identical rig. Never had any GOTO issues and I need to set up and break down all the time.

A friend generally gets three stars where they belong in the polar alignment scope reticle, and he uses a 5mm reticle when he syncs on a star. That's good enough for visual use with moderate power eyepieces.

I do the three star polar scope alignment, and then aim at a bright star, change to a very short eyepiece (something in the range of 2.5-4mm) and adjust the focus so the star is covering more than 80% of the field of view and then center that before syncing.