I appreciate your oppinion on the matter. The number you are coming up with is unloaded rpm. Eagle tree logging will show u that a motor rated at a certain kv will not reach that kv under load. Also this motor is rated up to 4s so 14.8 x 50 (the max rated amps) and that is where 750 watts comes from. On 2s you would need to pull 100 amps to pull close to 750 watts. So I am effectively using the motor with a 7x5 on 2s. Go to a 8 x 3.8 slowfly and amps go in excess of 50 amps. A fully charged 2s lipo will read 8.4 v. But under a load they sag to 7.4 or even lower rather quickly.

Although ill suited, these electronics work just fine. Flew today for solid 6 min motor came down at 120 esc was 97 as were the batts. Tons of vertical power. It also does a little better in the wind with the added weight. I'm happy with it. Couple sketchy landings where the prop shaft hit the ground but nothing happened with the 5 mm shaft. 1/8th inch shafts seem to bend easily.