Loth

this is my go-to

for me a big part of it is that the snackbox has kinda bad ergonomics when it’s on the same surface as your keyboard, if you have a thicker keyboard and if the desk and chair and stuff is set up to be rly ergonomic for typing and mouse work. I drop my chair down a little bit or raise the desk a tiny bit when i use the snackbox, and that tends to help a lot with wrist strain.

Another big thing for me is avoiding using the middle and ring finger on my left hand to do double quarter circle motions. Those two fingers share a tendon and i get crazy bad strain if i try to use them too often for quick alternating taps. It’s a little clunky at first, but i shift my hand over and use my middle and pointer finger to do the left facing quarter circle motions.

Other than that, i’ll play with the angle i have it on the desk so it’s not just sitting square in front of me the whole time. i’ll rotate it a little so the three main directional inputs are a little further away from me, just for a few matches to keep the motion from being so repetitive in longer sessions.

you could try a wider box to lessen strain on wrists. there is a smash hitbox called the B0XX that was designed specifically for a guy with a busted wrist to be able to play comfortably for extended periods of time. It does have a lot of extra buttons… but the button placement and the dimensions are the important part. I’m sure you can find a keybox with the same frame without those buttons too, or comission it from a controller maker.