To get 70 members out of 78 members to play in A tournament is A very high % & is nearly impossible due to some maybe working or sick you get where I am going.
1 Tournament every 2 weeks is very small for your membership base. May want to look at increasing tournaments to give members a reason to stay & not leave to more active clubs.
MY membership base is 130 members to cater for that.
I have 8 free tournaments weekly 6 of them have added prizes attached to them. Callaway balls , R9 clubs , wedges etc etc. (With theses 40 -50 players to enter out of 130 is a very good turn out.)
7 - 8 credit tournaments from 50c - 1000c some of these tournaments have added prizes added to them.
You don`t need to go this far with your CC but try to be more active & take advise from what your members want is the key.
Tip:
Think outside the box if you were a member of a CC what would you like to play in. Also start topic in your club forums & ask members to post suggestions on what types of tournaments they will like to play in , how often they want tournaments.
Find clubs around your level become friends with them & start your own CC vs CC matches could be match play , alternate shot , stroke play. Getting members more involved in matches will see your own CC participation improve.
Regards