Why not turn it the other way round and give all the bands/musicians on PA a little sticker PAA (Prog Archives Aprooved) making them automatically PROG. There will be a small test to see if they are worth and able fitting in. I developped a scientifically based test model. The subject has to have minimum two positive answers :
1. Can you play more then the C-Major scale?
2.Do you know at least one Zappa song by heart?
3.Do you possess at least one GG record.(purchase proove before the test date)
4.Are you sexy?
5.Do you believe that Elvis was the King?
6.Can you state one musician who does play in a band for other reasons then to get laid?
7.Do you know the difference between a double-bass and a double-bed?
8.Do you believe that masturbating provokes deafness?
9.Do you own a Chrome plated megaphone?
10.Have you seen 'Jabberwock'?