I use micro deans on my Rx batteries and had the misfortune of plugging two packs into each other, while strapped in my Wind. Don't have a clue how nothing burned - massive amount of smoke, sparks, somehow managed to stick my hand blindly in there and pull everything out.

Anyway, now I have color-coded micro deans for Rx, and Powerpoles for bigger batteries. You can color code them and assemble them so you can't make that mistake. Very handy, incredibly easy, super fast. I like 'em.