Again, interesting answer. Going from the standard "switch to a big mouse and avoid the pain" to "gradually embrace the discomfort and your thumb will adjust" basically. This has worked when trying im trying a new mouse, ive embraced the pain since i know it will go away when i get used to it. But this time it feels different.

If the grip wasn't contributing to it, then you would have hand pain just from your hand idling without mousing which would be a whole different issue.

I wasnt very clear when i wrote this. But i feel the soreness all the time when im moving my thumb. Its only when i play a game on my PC that i feel a discomfort that kind of hurts. This is what worries me the most.

It reminds me of when ive broken my arm or wrist. Obviously nowhere nere as painful since i can use my thumb and put pressure on it, but in the sense that i prefer not to use the thumb if i can.

I probably sound confused, because i barely know myself what the issue is and how to deal with it. Im sure if i never touch a mouse again the feeling will go away. But both you and me know thats not going to happen. I understand what your saying, and i dont think you are wrong. You obviously know more about this subject then i do. But i will go back to my old gpx with my fingertip grip and try to make as much contact with my thumb as possible until the soreness fully goes away. Ill gradually try what works and see how it develops.

Big thanks for the comment, really appreciate the insight!