Fair enough, still curious about why it will hover perfect one flight than not the second. your suppose to be able to let go of everything but the throttle and it should come to a halt and hover, right? Im on my way over my hobby store for a mcx body and let them try to trim/tune the mcx. I never bought the falcon 40, but ordered the madhawk from x heli after reading the reviews. should be here tomorow, than will probably sell the msr. I have way to much fun with the mCX inside the yacht and the house chasing the cat around