Currently the best keyboard for my left forearm's RSI has been Mistel Barocco MD770 [1] but I've recently been aware how the staggering maybe forces the fingers to travel in slightly unnatural ways. These videos [2][3] from Ben Vallack demonstrate this nicely.
Thus, I'd like to test an ortholinear one, but with all the normal 75%/tenkeyless board keys in place. I personally don't need to optimize the right hand keys as much so I'm not interested in learning an oherwise crazy new layout just to test out if the ortholinearity helps. And, I really like having the split since keeping two halves of the board further apart helps keeping my posture in control. But this combo seems to be difficult to find.
[1] https://www.mistelkeyboard.com/products/d11cf7a73da49468e2a5...