You'd assume Jake that the capability is there to allow for many different speed settings, given that they can speed up or slow down the current tournament green speed.
I think the biggest reservation that it'd bring from WGT's end would be the user friendliness aspect of implementing a stimp meter reading for the newcomer. What would a variation of 1 on the SM mean to a new player? The learning curve would become much longer and steeper and it could scare off the one thing WGT needs - new money.
For the long-term player however, it would freshen the game up immensely as it'd introduce a slight green variation nearly every round to keep us on our toes. I personally love the idea and think it'd be a tremendous addition moving forward.