Good evening, I'm currently running at an indoor carpet track (not a large track 10-13 second laps) Typically 23-28 laps on average in a 5 minute race. I am currently running a castle sidewinder 3 esc/ motor combo (4600kv) Looking to go to a sensor-ed motor. Looking for some suggestions. Also any must have upgrades for the B5m? It has the 4 gear transmission currently.