Still learning here.... I just found and used the simulator for the first time. I'm fairley comfortable flying helies so learning to work the sticks wasn't a priority for me. However, learning to fly by the numbers is. My question is what information is the "clearance" on the RC giving me? I could be 150' in the air, but have only 6' of clearance. That seems a little scary to me. Can someone please enlighten me?