Stop in for a cup of coffee

Hey Mike,
Not that you generally do "Rocks" with your brown water... Thoughts on the cold stones? I have some that were gifted to me and I'm not a huge fan.

(P.S> I rewrote this about 4 times and there's just no way to make it any less vulnerable to attack.... KARL!!!)
So I have looked at the cold stones a time or two as the concept is certainly intriguing, but sounds like they may fall short on preforming? What is the fundamental flaw?
(agreed, simply no way to Karl proof a conversation about cold stones)