Hook grip is what you do when you hate yourself
Basically it's just a way to hold onto heavy weights without using straps or a mixed grip. So it's required for weightlifting.
I'm switching to it because it'll let me set up better for my sumo and stop any imbalances forming because of mixed grip
It's horrible when you start but it's getting easier each week.
As for volume work, not really. You can use the volume to increase your tolerance but for shrugs you're just better off with standard grip or straps if your grip is fried.
Basically it's just a way to hold onto heavy weights without using straps or a mixed grip. So it's required for weightlifting.
I'm switching to it because it'll let me set up better for my sumo and stop any imbalances forming because of mixed grip
It's horrible when you start but it's getting easier each week.
As for volume work, not really. You can use the volume to increase your tolerance but for shrugs you're just better off with standard grip or straps if your grip is fried.