Oh I see, fairynuff. My 3 braincells understand now
I always thought ESC's were happy to drive motors either way, so I was just a bit puzzled when you said it's best to swop the connections about. Never thought of it from a safety point of view.
Didn't want to be missing out on a bit of performance or run time running it 'backwards' if you knew something about ESC's I didn't, which I'm sure you do anyway
Still like the Scorpion motor you sent me, more pull than the equivalent Hacker it replaced. Picked up the recommended 10x5E for it today, so will give that a go on it tomorrow...