Have you guys seen this thread over at CrossFit.com? http://board.crossfit.com/showthread.php?t=20405 A CF member did an experiment where he performed Tabata (6 rounds each, instead of 8) Pull-ups, Push-ups, and Squats every Wednesday, with a bench-mark test of Cindy (max rounds in 20 minutes of 5 pull-ups, 10 push-ups, and 15 squats) every 4th Wednesday, for a total of 12 weeks. Raw numbers increased dramatically, and his Cindy improved from 19+ rounds to 24+ rounds in 12 weeks. Very interesting. For a total of approximately 9 minutes more of work each week for the Tabatas, I'd say he made great progress.