OK, let's follow that train of thought - I admit I am skeptical but as of now any/all ideas are in play, and this is a s good a place as any other to start. In the RC Groups discussions, have they surfaced any common threads regarding motor brand or construction?
Just for comparison purposes my apps include:
* Turnigy 36-42 - 1000 kv with Phoenix 35. Run on 3.13, 3.14 (beta testers version) and 3.16. Also run for a short time on ICE-50 strictly for testng using 3.14. No differences noted.
* Rimfire 36-35 - 1200 kV with Phoenix 35 & 4S. Has been run on 3.13 & 3.16 with no differences observed.
* Arrowind 2820-920kv with Phx 35, 2832-960kv with Phx 45, & 3526-685kV on 6S with Phx 60.
* I use the same basic parameters set-up, ALL run with governor gain set to "10" (midway between the Low and Medium gains) and head speed rate set to Medium. All the Arrowind apps have only used Version 3.16, and all run very well.
* Have also run the Brodak motor whcih is 1500 kV on 3S and version 3.13. Again this motor is off the beaten path (10 poles instead of the usual 14) so it has a place in the common software discussion. It is now set-up to fly on 3.16 but has not been flwon this way yet.
* As a side note, I even ran the gear drive with the 4-pole inrunner on version 3.13, and while its career was short (about 10 flights) the common CC Software it seemed to handle it just fine. I only mention it because THAT motor combo was as far removed from an outrunner as you can get.
One consistant element in my apps is that the kV is a little tall, and throttle setting is thus low. Perhaps WHERE we operate in the throttle range is a factor? However the 3526 (in the Strega) has run well from 8000 RPM with a 13x6.5 to 11,000 RPM on a 13x4. That is a pretty broad throttle range.
Crist: are your comparisons all with Scorpions? Same motor?
I still think we're missing something in the set-up parameters, however Crist's excellent test series had not "bubbled up" anything there yet...