If I may suggest, you should get the quantum compeition instead of the sport and Novak GT7. Reasons would be:
*The Quantum Comp. is the top of the line ESC from LRP with no motor limit. So no need to upgrade if you use mod motors
*The Quantum Comp. is allot smaller and lighter than the GT7(perfect for 1:12) with a worlds option kit available seperately if you want the capacetor and heat sink.
*The Quantum Comp. has 5 profile modes to suit all kinds of driving requirements
*The Quantum Comp. is more or less the same price as the Novak GT7 and has a life time warranty.