Skywatcher 10" Quattro-Atik 383+Filter wheel+Coma corrector and OAG

[Singlin]

I think I have asked this before but I am popping the question again in the hope that someone has the above setup.

Has anyone managed to get the required 56.5mm backfocus (Extra 1mm for filter thickness) with the Atik 383L, Filter wheel and coma corrector and OAG?

[Singlin]

I have just checked out Flo's web site and came across this:

http://www.firstlightoptics.com/coma-correctors/baader-rcci-rowe-coma-corrector.html

This will give me more leeway.

Is it a good solution?