Nothing wrong with that I guess.

I would say a 'Pro Player' is someone who do this the as the work for living, main dayly income. But also have to got good talent and skills for what she/he is doing as well as the talent to satisfy the public.

I guess we can twist this 'Pro' definition a quite lot, but how many of the 'Pro' autocomp arranger players can step into a symphony orchestra and participatie in the same way or level as those who have passed their entrance examination, reading notes and playing what the conductor decides to play?
I have a suspicion that the number 'Pro' drops drastically with such criteria.

When we played gigs, we called ourselves "happy amateurs" who did the best as we could to entertain the guests, whether it was Saturday dance or at weddings.
Names or titles does not matter, if your customers are happy and you are happy with your equipment and what you're doing, I think you're 'Pro' as good as any.