ORIGINAL: Barry Cazier
After the plane transitions to flat you have to reduce the rudder a little bit to. So...sticks to the inner corners, as it starts to transition you slide the aileron stick to the right. This is a slow slide not a quick move. Generally I move it to about center, maybe a little more. Then you watch the airplane and it should be pretty flat. Then you reduce the throttle a little bit and maybe reduce the right rudder to about 3/4 (depends on expo) At that point the plane should be virtually stopped in mid air or SLOWLY decending. It will spin like a pinwheel. This spin is pretty fast and spins around the canopy. It just sorta sits there. Gives you time to chat with your neighbor or look at the pits etc. If you really get on the throttle and have the plane perfectly flat she'll even begin to rise.
Barry, I'm assuming you're starting from an inverted postition. (?) The way I had learned was from a video on Flying Cirkus and I could get planes on my Aerofly sim to stay flat but not with the UCD in real life.