I've noticed some small changes, but I think they are not in the G10. The changes I notice are in the P51 and Spit (9 I guess). But those planes are so common that you might think your G10 has changed.

Fighting against la7s, nikis, 38s, and others I notice no change from AH1. But for the Spit and Pony--
Spit--Dives better than before. I used to be able to really leave them in the dust, now it takes longer.
Pony--Goes faster. I used to be able to catch up with any pony unless we were completely co-E and *right* on the deck. Now the Pony's speed curve seems to have fattened out in the lower alts.
Still, the differences in both cases are small enough that I may be imagining things, and of course each situation is different with regard to relative E-states.