I agree with Mike.

I fly with many experts that have one crash, one mechanical failure or one bad landing per flying session.

I fly with experts that stay grounded if the wind is blowing hard, or get blinded by the Sun.

How expert are them? I am not sure.

In our case, we are designers, drafters, builders (some), test pilots, maintenance mechanics and pilots at once.

In my book, an expert pilot is not necessarily an expert and integral aeromodeler.