I picked up a Kinesis a few month ago and it's been a life changer. I've struggled with shoulder pain since as far back as I can remember. I'd done PT, dry needling, massage, etc etc. I'd even sprung for a personal ergonomic assessment. I'm a cyclist and and keyboard jockey, so most of my waking life is spent in positions that seemed to make it worse. At times it prevented me from sleeping, doing things I enjoyed, etc. I wear a 42 jacket, so I'm not crazy wide or anything.
I'd never seen anything that suggested that split keyboards were a good solve for the shoulder pain but I'd reached that point of just throwing shit at a wall because it was that, or find a new career and hobbies. Moving my keyboard so my forearms can sit slightly wider than perpendicular to my chest has almost completely resolved the shoulder pain and the impact was almost immediate.
I'd never seen anything that suggested that split keyboards were a good solve for the shoulder pain but I'd reached that point of just throwing shit at a wall because it was that, or find a new career and hobbies. Moving my keyboard so my forearms can sit slightly wider than perpendicular to my chest has almost completely resolved the shoulder pain and the impact was almost immediate.