Please read this before you use 4-finger claw.
Please, I'm begging you, if you're playing claw on mobile, make sure that your index and middle fingers aren't split too far apart and that you're not spending insane amounts of time on the game. I used to play with claw for 2-3 hours every day and now my fingers are irreversibly damaged. Now, whenever I'm lifting heavy or performing delicate tasks like writing, my indexes just don't stop twitching. It's like they have a mind of their own.
If you're gonna dedicate the time to learning this hold, please learn from my mistakes and do it correctly.