It's probably your grip. Video?
Can you do the chin up protocol to rehab dorsal wrist pain that occurs on pressing movements? The pain occurs at the base of the wrist. I have RA, but I don't think this pain is related, because its not bilateral. I'm guessing its tenosynovitis or something.
It's probably your grip. Video?
I was just using a 7lb dumbbell. And actually now that I feel it, the pain runs along the index and middle extensor tendons, too. I made sure the dumbbell was resting on the heel of the palm per your youtube video.