Feedback after some testing:
Thanks for giving reflexions back. The cockpit now looks really good!

Thanks for giving the 109 realistic proppitch rates now (manual proppitch. Haven't checked for automatic).

Sounds are really great now (and luckily removed sinking-ship-sound-during-tight-turns)

Thanks for CSP for Spit 1a.

Not so good:
The almost-as-crazy-as-before roll rates are back. Was much better before. My hope is that they rework the AI more in-depth in the future than just adding some additional features to old IL2 AI combined with unrealistic roll rates

Radio com still does not work and is still almost inaudible for RAF side.

Testing the speed of the 109E3: No change (I have not given up hope yet).

There's a graphical glitch when zooming out in external view of a Spit 2a (did not check for the other spits). I would post the screens if I hadn't lost them right now (must have pushed the wrong button). I try to reproduce it soon and post them. Meanwhile I try to describe:

From middle range looking from outside on the black side view of a Spit 2a the lower nose part and the oil cooler look wrong. The side of the oilcooler is white but should be black. And just a little more towards the spinner on the rim of the camouflage engine cover (left side) and the black bottom side there is a gab. Both disappear when zooming in further.