I practiced it on the sim till I was blue in the face then moved onto the foamy and I got it in about 3 flights.(Only rolling to the left though.)But when I done it with the SPA3DT I couldnt do it.The spad doesnt have a fuse for good K.E so when it passes the K.E point and rudder input is given it behaves irratically and out of control.I then tried it with elevator only and it was perfect,a bit more difficult to keep it smooth though,but it looks good with practice.So sim practice does help a lot and every plane and setup definitly affects the way you do it.