Try a throttle boss. I got mine at Hot leathers for about 6 bucks. If your not familiar with them, they attach to throttle and allow you to use the palm of your hand to roll on throttle. You can stretch your fingers out over the brake and still control throttle. I love mine! When i get new grips, they will have integrated Throttle boss. Little more flashy than plastic universal.
2011 RGC, Sedona Orange 103" w/ 48H cams,PM Icon 21" wheel,Kury Mach 2 intake,Jackpot 3.5, PM brake and shift levers, CB 14" TRSSC shield, Sinister 14" apes, custom levers.Black exhaust,floorboards,pegs and crash bar.