its just a feeling but I think the 2012 107 starts a bit earlier in planing and is very light. My carbon version without straps 6,15kg!! :-)) It gives a high and free feeling in planing.
Until now not tried the Reflex II 9.2 on it if it will work?
But 8.6 and 7.8 are the best combos off course.
On the other side a big difference to the last year model I cant see.