Hello all, I've been flying trouble free for quite some time now. I have only just today noticed that when in forward flight, I'm barely able to climb any longer. If I stop moving forward, it will climb. It definitely doesn't sound as punch as it used to. I tried several batteries - same thing with each, so I'm pretty certain it's not an issue with those. The motors sound fine when I spin them on the ground - my suspicion is that one of the motors is bad and on its way out. Short of replacing all motors, how would one best determine which is the offending motor?