That makes sense. It will have excellent carryover to axle work. I made a 50mm wrist wrench for that purpose as i will get an axle one day.
All your bases are covered and i like your minimalistic approach to training. Get as strong as you can on a few core lifts 👍 Im really narrowing down my grip exercises as well now i class my self at an intermediate level. Im past the beginner stage.
How long have you been into grip training?