I don't fly rotary, but do fly both 3-axis and flexwing microlights, and light aeroplanes.
Going from 3-axis anything to a flexwing I find as difficult as getting out of my car and onto a bicycle. That is to say, not at-all.
I have concerned myself occasionally, although not made any serious mistakes thankfully, going between 3-axis microlights and larger light aeroplanes as whilst the controls work basically the same, the speeds, heights and attitudes are all different.
G