First. Set up your practice session. Draw a 60 degree box, or put cones out there so you can practice flying in that area and parallel to a line in front of you. This is a simple process. Walk straight out 10 paces (counting each time your left foot hits the ground). Put down a cone. Turn right and sight a spot in the far distance, parallell to the flight line. Walk 17 steps. Put a cone down. Go back to the 10 pace spot and turn the other way and walk 17 paces and put the third cone down. Done. IF you have a larger runway you can multiply everything by 2. (20 out and 34 left and right). The square root of three is 1.73, I believe. 17 paces is close enough. I double checked and this is much more accurate than some cardboard/line templates. And more accurate than the lines drawn on the runway at site 1 at the NATS (very big grin for the FAI finalists like me who kept finding themselves out of the box on the right side).
Step one. Positioning. Put the loop about in the middle. Put your two rolls centered in the middle. Put your square loop centered on the middle. Keep your turnarounds in the box. This teaches you when you need to pull up to keep maneuvers postioned or in the box. Center your spin entry. Correct for wind.
Step two. Geometry. Make the loop round (that is now in the middle). Make your centered square loop square. Put your turnaround cuban 8's at 45 degrees. Use a paper plate or fresbee that is round for loop coaching. Fold a piece of paper at a 45 degree line for your coach to use. A coach is anyone. You wife (Hanno taught me this), your girlfriend (before the hot date), or even the student you are instructing between practice flights. Trust me students never lie.
Step three. Wings level. By the way, in case you are wondering when, this step requires the use of rudder throughout. Do everything opposite that you learned about in some of the sport flying aerobatic "expert" guidebooks related to rudder. Trust me, it takes practice to understand what weathervaning is and how it's used to work with a wind correction, and when you have to straighten the fuselage out. If you want more details than this, get the "precision aerobatics technique" video. Ask my wife for this at email@example.com
Thats it. Oh, yes, If you have baked that cake and want icing, do this extra step. A couple/three weeks before the contest do this thing called smoothness and gracefulness. Don't do this til last. It's the easiest to do but adds points. Throttle control, upline, downline speeds. Smooth entry and exit of radius and rolling maneuvers. Remember you are there to please the judges. Nothing else. Show it. Best of luck at the contest.