I have one, and I've had a great time with it. The manual says to use "everything you can get" for high rate. I would experiment, and gradually increase the rates as you get used to the model, as it will roll quite fast. Be sure that the pull-pull cables for the elevator are the same length and snug. If you really yank on the elevator, it will flop out. Use plenty of expo on the ailerons. I have 65% on mine and 25-35% on everything else. Mine is powered with an OS 46 and a 12x4 prop and does just about anything. The wheel pants tend to crack in tall grass. If you don't have remote glow, I would add one somewhere where the prop won't slice your fingers off. With the size engine that you're using, you might have to add tail weight.