I, too, am saddened by Sheldon's passing. I have enjoyed reading his contributions to the list and always made sure to read his signature, which was always a witty tie-in to the question at hand. I was honored that he took the time to visit during the CR Koffee Klatch at my booth at Interbike. Tailwinds to you always, Sheldon.
Mark "too sad to say something witty" Ritz
Arcata, California, USA