i bought a rotostart when i purchased my gst, and after it was ready to be installed (few gallons ran through) i installed the rotostart. After a few uses the motor burned up in the starter. I dont know if CEN has one now, but i purchased a replacement on ebay from HPI i believe called the rotostart2, which is basically the same thing but it has a circuit breaker and a cover over the button (so it doesn't get turned on while in a tool box or etc.) so all in all i believe the one with the circuit breaker is a better buy if u can find one somewhere