Say 'Ahhh' ... It's Zen!
I had a sort of Zen flash of enlightenment while working on barre chords for the umpteenth time. It involves a sort of purposeful mental separation between the pointer finger and the other three operative digits during the formation of the chord.
Maybe it’s just mind games, but accuracy and quality are up to an unprecedented level. I’ve decided that the mere action of a chord change is so brief and focused that a lot of the actual performance is mental, once the physical skin-and-muscle-type constraints are sufficiently resolved. Tricks, therefore, are fair and effective games.