As awkward and weird as it would feel putting with a literal rock, i think they are cool lol if they weren't a crazy price i would totally buy one just to have haha
Excellent! I agree with Dave- it's also nice to have all kinds of options open up. I experimented with 3 layers of masking tape under my left hand (I'm a lefty) and it made a world of difference (for the better) with my grip pressure.