What spec is IMPBA using for 19 turn motors? NORRCA specifies 24 degree fixed timing, while ROAR has adopted ARCOR rules which allow variable timing. I'd go with variable timing if it's legal, but if you have to abide by the 24 degree rule, the Chameleon 2 is probably your best bet. Compared to other fixed timing 19 turn motors the powerband is a little more suitable for on water use. If they will allow it, the new Reedy quad magnet 19 turn shows promise on the dyno. Got my hands on a pair of 'em last week and will let you know how they tune up.