15T pinion on the 11T motor? That seems a bit too much. How hot are the motor and batteries after the flight? 13T is the way to go.
I tried some 14 cells today on my B50-13L motor, and I've decided to convert all my packs to 14 cells. The power is excellent, and the added weight actually made the heli more stable in hover. With CP2400 packs I get about 6 minutes.
Hope you'll get yours going soon Jason. It's been months since you got the heli! I'm still waiting for my ESC for the Logo 20 as well. on to 6th week now...