I've several cask strength bottles and still take them straight as an arrow. The only water my scotch glasses ever see is in the washing. I think the added strength is one of the charms of the special bottlings over the off the shelf standard fair at ofter a third less strength alcohol content. I do however sip more gently and savor more longly. And I do have a couple that I believe could peel paint if given the opportunity. If I were the worrying type I would be wondering what the stuff was doing to the lining of my esophagus and stomach, but as long as I can finish the glass without chest pain I consider it successful adventure and forego the worry.

j