The 4 Keys to Precision Aerobatic Flying (If a pilot is weak in any of these areas, no amount of practice or capable equipment will make up for the resulting lack of consistency.)
1. CONSISTENT PARALLEL LINES using ground targets relative to the runway centerline at a comfortable distance in front of you.
2. WINGS LEVEL entry into each maneuver.
3. ONE STEP AT A TIME compartmentalize the execution of each maneuver mentally and inputs.
4. DO NOT FIX (When a deviation is encountered, take that opportunity to diagnose the cause and use that to perform better next time, as opposed to fiddling with corrections that only serve to further muddy the maneuver.)
Once you have consolidated the first 4 keys, 3 additional keys aimed at perfecting maneuvers are possible (These are what the Pros do that enables them to figure things out in the fewest attempts.)
5. UNDERCONTROL when inputting refinements.
6. BACK UP to something comfortable to reestablish "flow" whenever progress stops.
7. INTRODUCE VARIETY to avoid getting stale or suffering paralysis-of-analysis, aka, trying too hard!
It is not hard to spot pilots who have mastered the essential fundamentals and are therefore worthy of admiration:
1. They can perform a continuous series of maneuvers one after another.
2. They can do so just as well in the wind.
3. Their landings are consistently smooth on the centerline near the front end of the runway, even when it's windy.
4. They can seamlessly transition between different types of models and take minimal time to dial-in a new model.