ORIGINAL: jonlowe
I've been told that, in general, it is a good idea to keep all wires as short as possible to reduce voltage ripple which stresses the ESC. The big capacitors are there to handle ripple but they have their limits. Wire length and the batteries themselves can all generate more ripple. Between the cables on the batteries, and the ones on the OS controller, I've found them long enough. Wire of that size is also heavy, another reason to keep them short.
ORIGINAL: nonstoprc
I got mine as well and found the main battery wires are relatively short, compared to ESCs of other brands. Has anybody soldered some extension wires?
Well, in this plane (a Passport), the ideal location for the ESC is on the back of the deck where a constant flow of air passes through. The ESC will be a drop-in replacement if the wires were just 1 inch longer.