RE: 2 blade to three blade question
The PKZ 1015 is a 9"x7.5" three blade. That half inch shorter length is important.
Be careful what props you stick on any electric motor. Fuel engines simply don't turn up the revs when they're overloaded. But electric motors will simply run at higher amps if the battery will provide the juice. If the higher amps creates more heat than the motor can handle, it burns up. Depending on how overloaded it is, it might burn up right off the bat or might take awhile.