Pluto states his TAK already has a FT motor. That being the case, I fail to see why anyone would choose anything other than Starlight's Focus Boss II with Handymotor.
http://starlightinstruments.com/stor...product_id=305
No fussy bracket to deal with. Very elegant.
I tried this sytem with the original 4" Tak focuser and ran into problems which led me to return it with great reluctance. The issue I faced is irrelevant with a FT focuser though.
I was using it with an STL-11000(internal wheel) and MMOAG. Ability to hold focus without slipping was not an issue.