Yes, it's easy to make mistakes. First day flying on my own, I took off with my transmitter antenna in the closed position. Lucky for me my instructor saw it when he was retreiving a plane on the field and quietly walked over and pulled it out...Ouch that hurt the ego a bit. I think 2.4Ghz is in my future, I can't believe I had control of the plane with it down...very lucky! I also got a bit out of control trying to do stuff the trainer didn't like (heard comments from the gallery like "it's a trainer not an sport plane....you sure you got it?". Going back out tonight, hopefully I'll relax and just take it easy. I'm going to practice flying straight down the runway and doing touch and go's.