ORIGINAL: woodie
Jim, your results are very similar to what I have found with the 11T vs the 12T. Basically, I find the 11T to be almost the same as an AXI 5330/F3A. Same amps and rpm during my tests comparing the two. Only difference is the DS is 2 oz lighter. With the higher rpm, you can also back off on the pitch for the 'calm' days and the amps and usage will go down. For really windy, strap on a 20x15 and 'hang on'. ;-) I still prefer the 12T because of the lower amp draw, I can still get plenty of speed out of the motor with more pitch.
Don
I pulled the 11T primarily because I couldn't get the spinner to track properly. This is an early motor without the tapped shaft for a spinner bolt. I bought a second spinner adapter nut and still had the problem.
After looking at the data, I decided the high current of the 11T was probably going to mean short life for the batteries. I could see my True RC 5000 with about 60 flights was showing signs of degradation. I know the first day I flew the 11T in the heat the battery got very warm. The 12T with good batteries performs adequately but I can see that with old batteries and wind I would not be satisfied. So right now, unless you get free batteries, it would seem the 12T is better, because the 11T will make your batteries old pretty fast.
Ultimately, two airplanes might be the answer. One with each motor. Fly the 11T only when you really need the added power.
I've attached data from 4 flights. The packs are 1) original TP Prolites 2) TP v2 5000 3) new True RC 5000 4) old True RC 5000- now 69 flights
You can see the old True has lost a step.
Jim O