RE: (still) Rudderly confused
No, practice to prevent it (adverse yaw), but don't get all hung up on it. It's a subtle thing, and subtlety is hard to learn. Just like perfecting flairs on landing, or not popping a take-off.
Work on it, don't sweat it. Have fun, as always!
As FlyX says, right now you simply must wake lefty up. That you try to do so is licking that most important part of the battle. He'll become proficient at his new job before summer's over, and you won't have to do a thing but fly. His real training comes as you work those aerobatic figures, and become dissatisfied with corkscrewing loops and non vertical verticals.
It'll come!
J