So, I've read about not having too much belt tension, but how much is needed? With very little tension if any, it seems fine, but if I put enough to make it seem fine, it feels like the teeth are rubbing, is it that sensitive? I keep thinking I've got it twisted up wrong, but I've twisted the tail back and forth and I don't think I do. Its my first Synergy. Aaron Johnson said he'd check it out in a week when we get together at a fun fly,but I wanted to get the motor broke in by then!