i feel the same way. besides, i don't think the gorynych originally ripped its victim apart with the wishbone unless the attack actually killed it. i would expect to see the same thing for Cerby here.
Well i think our cerby should definatly be better than cr 20. This is an epic monster thread after all =P
Also neither of the monsters despite haveing tons of hd have epic feats that might be a factor on its Cr as well i think 45 hd sounds right. Cerby Should kick some Copious ammounts of ass.
Oh no...you just gave me visions of the Cerebulings, an ECL +0 race that waters him down to be a playable race at 1st-level (in the same vein as shifters, changelings, spikers, mephlings, etc.)