I also notice a difference betwen BS1 BS2 trimming system. I have an X-52. Same profile, same axis curve, same DZ but BS1 was so much stable for me.
I have some issues with bank angle. In BS1 i could trim with a quick "press/release" i mean adjust the desire bank angle and then press and release but now in BS2 i need to press then adjust the desire angle and then release. If i trim as in BS1 the autopilot will keep going at the direction of the last input even if the cyclic is centered. Lets say: While in level flight i need to make a left turn, so left cyclic left pedal until desire heading. Ones i have to level again, right cyclic, right pedal perfectly level, press/release trim button, and the aircraft start banking to the right. I get use to it now, but it was more easy for me in BS1. And it has nothing to do with the centered position trim option.
