My friend and I are looking to do a workout to kick our butts. We're both sprinters (back & free) and used to swim in college in the late 90's. We need the workout to be sprint-oriented to build up a ton of lactic acid. I don't want to do anything longer than 75 yards during the main set. Who has some main sets they'd like to share? Our workouts usually total 3000-4000 yds, but may be less in order to get a good sprint workout in. Thanks, Scott.
