My back and shoulders felt so much better when I mounted my spliit keyboard floating under my desk, halves shoulder width apart. Not just arms on the armrests,

My back and shoulders felt so much better when I mounted my spliit keyboard floating under my desk, halves shoulder width apart. Not just arms on the armrests, shoulders back against the chair instead of rounded forward. I can't go back. Nevermind that typing that way with colemak and hardly moving my fingers feels like magic.