Originally Posted by
.:hyperdrive:.
The cheapest, easiest and first upgrade that anyone should do is to switch to better batt connector and to solder the esc directly to the motor. I assume you've done that already?
I am using powerpole connectors already and have soldered the wires directly to the motor, as I am racing in a silver can class we are limited to 1500 nicads and everyones uses Sanyo 1300s which are not very old so should be on an even peg on that count