I set up my Angel exactly as per the instructions, I have never had to re-trim or change anything from day one, the percentage mix for straight knife edge is exact, movements of the surfaces are just perfect, on the first flight my flying buddy could not belive the knife edge was so true, right hand off the Tx and end to end flight without any change in direction.

Get out there and fly it, one of the most true flying models I have ever owned and I fly a composite Edge and Extra, a QQ Yak 85" and all sorts of things in between, the Angel still fly's the best.

Mike