I just got a Phantom FC40 and before I even took it out of the box I turned each moter by hand and found the front right motor turned harder then the other three. You can also tell that it turns slower then the others on the ground and when shutting it down it stops right away with the others spooling down at the same time. It seems to fly OK but this tight motor makes me wonder whats up. It would also use more amperage to get it up to speed will it last? I don't think it's right. Any one else come across this?