I bought a used Phantom 2 and I noticed that one of the rotors comes real close to the body of the drone at the tip than the other three. I can still fly it though, is this normal? If not how can I fix it? I would like to get a camera setup, what is the cheapest option? I was flying this yesterday and I went a little far and lost orientation but was luckily able to get it back, if I would have turned the remote off would it have flown back? I am not real sure about the switches and there functions exactly. I did figure out if I turn the s1 switch off of gps it flies much faster.