What would be some of the best exercises to build up quality grip strength that extends to different types of grips.
I’m thinking mostly in terms of helping with rock-climbing.
One of the more clever things I saw was a wide PVC pipe (8in diameter, or so) vertically cut in half and mounted on a board on a wall. From that you are supposed to do pull-ups–it’s a bitch. Then they were able to make it 5 times has hard. They made a straight plastic piece on a hinge that mounted right above the pipe to when they would close it on top of the pipe where you can’t jam your finger tips in the crevis where the pipe met the wall.
Any other (un)conventional ways to help grip strength?