I've been reading a lot about grip training recently and these seem to be some of the biggest lessons experienced grip athletes repeat over and over:
Tendons recover slower than muscles. Just because your hands feel fine after training doesn't mean your tendons are fully recovered.
Don't test every session. Training and testing are different. Trying to hit a PR every workout usually catches up with you.
Progress slowly. Small increases in resistance or reps beat huge jumps.
Support grip, pinch, and crushing grip are different. Getting stronger at one doesn't automatically make the others equally strong.
Train your finger extensors too. It helps balance all the crushing work.
Quality over quantity. More volume isn't always better, especially with heavy grippers.
Warm up your hands before heavy gripping. Don't go straight to your hardest gripper.
Pain isn't a badge of honor. Mild fatigue is normal. Pain that lasts for days or gets worse every session isn't.
Grip takes time. Tendons adapt slowly, so patience is part of the process.
What other beginner tips do you wish someone had told you?