zip tie the wires an inch before the connectors, that way they shouldn't touch.
You could also use a female-male on the batteries too, that way you could never screw up connecting it to the esc.
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens
WHy bother you are not going to gain anything at all. I'ts like adding 4/0 wire for starting your riding lawnmower. My systems peak nearly 2000W and I have't really had any problems that I haven't caused myself.
But if you just have to then use a male and female for each device to aviod polarity issues.