Fix with your eyes on technique. Perform with your mind on the effect.

In practice, look at technique when you're fixing a spot. When performing or recording, put attention outside the body, on the effect you want, with one word for it. Test both on yourself.
P Evidence: promising. Good studies, but small or few. Use it and keep checking.
C Evidence: contested. The research disagrees. Named, so you can stop worrying about it.
Hohagen & Immerz 2024 (51 pianists). The sports evidence on attentional focus is contested.
Not medical, legal or financial advice.
In The Ecosystem every framework comes with a daily action, a room that checks in, and the full library.