Over propped W/42-55?

[AZpdljumper]

Ran the boat this afternoon and warmed up the batteries and motor. Need a
temp gun to get exact data but the batteries and motor were hot but not so
hot I could not hold on to them. Have upgraded to the Kintec water jacket and
pickup. Just wondering if the prop Iam using is too big. Just a little parinoid of burning something up. Othewise ran great. Should have a gps for speed testing
next week. Thanks for any input.

[TCR]

That's the prop I'm running, but I only run 14c NIMH. It's the prop recommended by quite a few people, that's for sure.