what kind of learning curve should there be considering I already fly airplanes ( I know that is a loaded question )
I am fairly proficent at flying
I'm a 30 year plank flyer myself. I find that forward flight is almost ingrained as long as I don't lose sight of the fact that overall lift is on (what I think of as) the throttle.
Most of the reflexes you have built over the years will accelerate the process of learning to hover, but nothing but time will make you proficient.
Think of balancing a broomstick on your palm. Until you learn not to over or under correct, it will get away from you.