Hi Pete,
If you find you have to move the mount to improve PA after doing your large tpoint model for Protrack, you can still use the large model after you have adjusted the PA adjusters to get your PA.
I see your over at the Sb forum so you should be able to access these posts on the issue;
http://www.bisque.com/sc/forums/t/17591.aspx
http://www.bisque.com/sc/forums/t/17...px?PageIndex=1
clear skies
Josh