Tony, maybe not 500, but a good 250 I reckon, and your 50 now probably not far off.
The problem with looking at typical patterns of membership behaviour and what they like, some say 50% like being mixed up with others in competitions and 50% don't. Typically only 33% of your members use the clubhourse, you will get a % of members that love practicing, that like playing two balls on their own late at night, lots of little groups of 4 that just like their own 4, then you get the strong 30% that mix, attend functions, play in teams,wear the clubs jumper, change their cubs every 3 years with the pro, have a few lessons etc. Everyone has different wants from their course, if you make rules those rues wont suit somebody and he will exit....as we keep saying its not easy.