Harry, where in my post did I say I was doing a flat turn? What I said it that it is common place to hold rudder to maintain ground track. Maybe you should understand what is being said before posting. Let's also take your comment about aileron differential not being of any use on a zero G up line. Do you have anything that would support that statement other then continuing to brow beat us into believing you? IMO one really can't argue with success, the fact that I have won multiple SW region IMAC contests using these methods illustrates success.