It would be very convenient to switch to a single motor brushless setup. Here's a trick to help ya with battery life and motor wear(heat, basically). Put the esc where the receiver is and vise versa. This will get rid of a ton of motor lead you don't need. It makes spur/ pinion maintenance a little easier, too. No wires in the way. You won't see much of a performance increase, but your motors and batteries will stay a lot cooler. The batteries I was talking about are actually 4500's. They really woke it up, even with the stock motors. What are you currently running for batts?