IMO = "IM Order", meaning that the 1st one is fly, 2nd one is back, etc. There are essentially eight 200 IMs in this set. Descend 1-8, all free is "cruise". With the first and second intervals finishing at different times, after a 1:00 rest, they go straight into a set of 50s breast where the focus is hitting the wall on a full turn.
Labels: IM, Woodruff