A quicker way to take our money? - we are all here to enjoy ourselves and have the best experience so why not make some tier based RG's 18 holes.
Seems to me if you like to do the full 18 atm you're always competing with the very best and your 100 won't get much of a return, if you want to compete against your peers you only get to do it over 9.
Unless of course I'm missing all the 18 hole tier based RG's, if so my bad and I apologise