>>2718099That kind of grip trainer has its uses but I do not believe it would be worthwhile to bring on the trail.
You could get most of the way there just squeezing the balled up socks.
Now, he could have something in mind like working single or double digits progressively and the socks wouldn't be great for that.
But trying to use one of those and keeping track of different levels for different digits would be a pain.
