The true art form is Pattern.
Ask any of the TOC guys.
Scales aerobatices is a walk in to park after the disciplines of F3A.
Free style..just a gass..away of shaking of stress, eye candy for the public before the serious bussiness preparing for next F3A contest.

There's just so many places to go wrong when flying pattern and I'm not talking about the aerobatics...as stated flying the lines is a *******... simple pull a 45 degree upline with a half roll in the middle.. and then getting a zero from one of the judges because in his opinion it wasn't exactly 45 degrees...bummer.
I mean even a novice can pull that manouver yet a world champ competitor can score a zero....
It's tough being precise.