Recently upgraded my RV9-A, 1027 hrs, to Grove wheels and brakes. Had to modify the wheel fairing brackets to accommodate the slightly larger caliper assembly. There is a very noticeable difference with increased braking power.
I also recommend Groves tubeless nose wheel assembly Part number 59-19-RV for $349.00. This wheel uses the Aero Classic 11/400-5 8 ply tubeless tire from Desser for $47.95.