Depends on what type of flying you want to do. For me, I would practice slow rolls that would span more than the entire length of the field-there is a difference though as anyone can somewhat do a slow roll. The idea is to not loose/gain any altitude throughout the entire maneuver. Flying knife edge circuits canopy and belly in helped alot as well. I like to fly several kife figure 8's belly in and then switch to canopy in to practice. Doing a ONE roll rolling circle will help tremendously as well and then there is the rolling circle and rolling harrier of course. Inverted harriers will learn you the rudder, after that, its automatic.
