Really pretty easy---Hold your knife edge and as you make your pass add a quick ele/ail and more rudder as you release the aile/ele to nuetral ease back to where your rudder in-put holds your knife edge. Try this with your trans in front of you for a couple of dry runs and you can see how it feels and how to get your rudder back to where it needs to go and then fly a couple at a little higher altitude and you will get it real quick. Hope this works for you. Have fun.

Dan