Peter, I'm in the same boat with my TOA. I suspect that the US forums might be more helpful. How about trying the massive FocusMax User Group, search '
FMaxUG' in Yahoo Groups.
Otherwise, Techincal Innovations may have that coefficient info on file for various scopes, a long shot, but worth an email.
Not sure how you're faring with the RoboFocus Control Program (RFCP) but I'm having one hell of a time setting it up! Will probably start a new post with questions there, so if you have insights, please contribute!
Cheers, Logan.