For what it is worth, I purchased this carton of Blue Diamond nearly 6 years ago.
I've given away 1/2 dozen boxes to pals........I've stopped doing that.....instead,
I offer them the MC as a gift instead of the Blue Diamond I'm keeping for myself.
Both chalks perform the same as far as I'm concerned and if you chalk after every
shot, then these chalks offer no superiority but other chalks just result in discolored
shafts and dirty hands.......I play with Blue Diamond instead of MC and I have both.
Matt B.