Beginning couple workouts were non-maximal, not to failure. First doing a regular, fast close and a slow 3 count open. Then a slow close with slow open, 3-3 tempo. I was also doing reverse grip DB curls and hammer curls, so it worked out like a nice preparatory break in period. I think this really helped my fingers get ready.
Then the “routine” started
Light Day
3-4 work sets of 6 reps with same gripper, 0-3 tempo. Fast close, slow open.
Heavy Day
3-4 works sets of 6 reps, working up from easy to hard gripper, 0-3 tempo. Fast close, slow open.
Light Day 2
3-4 sets of 6 with the same light gripper as last light day, this time using 3-3 tempo. Slow close and slow open.
Heavy Day 2
3-4 sets of 6, working up to the same hard gripper as last heavy day, this time using a 3-3 tempo. Slow close, slow open.
Light Day 3
3-4 sets of 6, 0-3 tempo, with the next gripper up.
Heavy Day 3
3-4 sets of 6 reps, 0-3 tempo, ramping up to the next harder gripper.