flaminheli;
TOM is absolutely right about the battery set up. If you have a charger that can handle A123's, go for it. Otherwise buy a 2500 mAh Lipo from TBM along with a MPI Miracle switch/regulator. Awesome combination. But you should definitely go for a ignition kill switch. Ditch the choke servo, you don't need it. Buy a kill switch from 42-percent-products.com for 32 bucks. This is like buying a life insurance for your airplane. The throttle cut is nice but not helpful if you are flying. Which airplane are you building? What motor are you planning to use?