https://community.usms.org/swimming/f/general/10086/need-help-remembering-a-book20-odd years ago I had a book that had a great appendix. It had a list of 100 workouts, numbered 00-99. Point was to start your chrono and then stop it randomly, and whatever the hundredth of a second was, you looked up that number in the table, and diden-USTelligent Community 12