I have about the same tach readings. I may try an 11" prop. If that does not do it for me, I think I will use a 4S as long as the motor lasts. I may have another motor that will get me up to the 200W range. At 3S, it was just not getting the job done. I fly outdoors so I want to ensure I have enough power for the usual winds we have.

Thanks for all the assistance.

Wayne