So where all the half moon cracks on the object balls then? I haven't seen a single one.
I dont have any of those marks on my red circle. The reason its the phenolic tip and not the object ball is because of the much smaller radius of the tip, theres much more concentrated pressure in that small area. Kind of like the difference between hitting a piece of metal with a center punch or a body hammer. One is small, one large, one will leave a mark, one will not.