Mata, first of all it is not Audyssey that is setting your speakers to small/large and to a 40hz crossover, this comes from the receiver mfg. Anyway, I would go with 80hz for the fronts and center, and 90hz for the Q's.

I have my M80's set to small 60hz, vp150 small 80hz, and Qs8's to small 90hz...

A lot has to do if you ran the setup correctly and followed the Audyssey setup guide on AVSforum.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85