Hi Egor,
Thanks again. :-) I'm glad to hear the 3D mode works well for you. That tells us the mode is not our problem. The 3D is what we wanted to use for obvious reasons.
My friend is not able to get more than 8600 RPM on an 11 x 6 APC prop. This gives lap times of only 5.3 sec/lap. He would like to get down to 5.0, this would take an RPM of around 9,150 RPM. My guess is that some setting in the Spin ESC is holding back the RPM.
I assume that you are just setting your timer at 100% so you have a full range with the ESC controlling the speed?
I don't have my unit in a plane yet, so I am trying to solve this for a friend a few thousand miles away. I'll try to get mine in a plane soon so I can try some changes myself.