I can confirm that the 109s and Spits didn't change at least in terms of turn performance. Some slight changes, but nothing I'd say really serious.
Oh, one interesting bit, is that all the G variants turn about the same now. That doesn't necessarily mean they all feel or handle the same, but when doing the tightest turns possible, their turn circles are mostly simular. The G-2 and G-14 is almost the same, and the G-6 has a very slightly larger turning circle than others.
Will post the results soon in my turn performance thread.