first off id like to start by asking if anybody has experienced alot of interference while flying there cp+? i mean like once every 3 flights or so. just the other day i got my blades tracked perfectly and stepped back to get her airborne and just as it lifted off the ground it went full throtle into the ceiling, bouncing off the ceiling a few times until finally hitting the floor in the dead chicken dance. while this was happening i had my throtle all the way off the throtle trim was at zero and the idle up switch was off! any idea if this was just random interference or does this sound like a hardware issue?

second thing i was wondering is what is the largest size pinion gear (amount of teeth) that can be used on the cp+? and im guessing that with a larger than stock you get more lift with less throtle? what are the advantages and disadvantages to doing different sized pinions?

thanks guys, chris