Hi John,
I threw a GoPro on with some fishing weights to equal the weight of the 5N - didn't bother to balance it all that well since I will be putting the 5N back on. A little drifting that I will need to address - I may need to redo compass calibration - the two circles were not on top of one another but I though "close enough." Guess not. These are the motors from the Steadi470 - they are VERY quiet. Need to also balance props - I could see some imbalance just prior to take off. FYI - there is actually an earlier take off that only lasted 20 seconds or so. I ran into a similar issue you mention - seemed to tilt to the left. I landed and started again. I found that giving a bit more throttle rather than just aileron seems to help. But if you are too close to the ground when it happens - well....... Not sure exactly what is going on with that, but once it starts flying and is a few meters above the ground, it seems very stable. Maybe it just need to clear the ground cushion? The guy who built the Ecilop recommends using two seperate heading gyros - one each for roll and pitch servos. I am using the 2nd IMU from the Steadi and it seems to be working very well. The ice is getting pretty thin so I need to find a big field to run the rest of the testing with the 5N attached. FYI, I also put together a fixed wing over the winter for additional FPVing. Been practicing on the simulator. Don't think my stomach can handle goggles though - those light planes really bounce around a lot!