Val,

The only thing I didn't try was a Team Orion Slo-Max 300 motor in there...I want to know the answer as badly as you do, but at the time, I was more interested in getting the d@mn thing flying. I've since moved on to a MaxiR and just wrote off the BCP as a "git 'round-tuit" project.

The only consistent factors in all my tests were time and heat, I just never did find out exactly what was going on - we tossed around a lot of great theories, but in the end, all I wanted to do was fly and was willing to throw any amount of money at it (foolishly I might add) towards that end.