I had the great good fortune to attend a school at Watkins Glen the week before the GP. [wo, wo many years ago!!] We had 3 "Guest instructors" Stirling Moss, Jimmy Clark, and some old guy [not then] named Shelby!
Fat ,dumb and happy as I was then, I didn't think it was any big deal. 3 LEGENDS, no biggie! Ain't youth wasted?
