some people have problems with joystick staying calibrated. it'll stay calibrated for awhile then just lose it. something in deadbands or damping. it not a major loss of calibration, just a minor one , only can tell difference when doing hard manuvers.
another thing might be cause is combat trim, it doesn't react as quickly in AH2 as it did in AH1. so it seems to me anyway.
or during a split-s, it goes trim elevators down when gaining speed and you trying to pull up, it wants to pull you down.
to counter this, hit the trim elevator up manually.
