I have both setups. I use the throttle rocker for around town/hwy driving of less than 100 miles just because I have a tendancy to grip the right hand grip real tight, dont know why. The throttle rocker is very easy to install and use, cost about $12.00 plus tax. I haven't mounted the Vista Cruise yet, that will be for very long rides, such as going to New Mexico later this year, the benefit there is as stated earlier, you can stabilize with your left hand and get some circulation back into your right and allow the shoulder to rest. I would recommend having both but take your individual situation into consideration. Good luck and happy cruising. Monica