Please add high frequency vibrations for piston engines, it would be great to be able to set the frequency and amplitude at idle and full RPM. Right now the stable RPM vibrations only make the plane sway from side to side slowly, and the increase RPM vibrations which only act when RPM is rising and then they stop. It would also be great if we can have the current stable RPM vibrations act during taxi and takeoff run, to me it looks like they stop when the plane starts rolling and they are completely replaced by the ground rolling effect. In my opinion it would be better to combine the 2 effects. Anyway, this is a great add-on that really improves the experience and immersion in MSFS. Thank you !