differences between Foxll C22 and C22B

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Hi Everybody!,

I looking for information about differences between Foxll C22 and C22B and C22C.
Following information:
"http://www.daec.de/downfiles/lsgb/kennb ... /035-1.pdf"
and
"http://www.daec.de/downfiles/lsgb/kennb ... /035-2.pdf"
C22B and C22C is more faster then C22.
If I correct understood most important difference is Wing's profile?

Is possible to install the wing from C22C on Fox II C22 Aero?

Best regards

Giedrius