Notes
400 choice warm up
6x75 w/:15 seconds rest (kick/drill/swim by 25)
3x150 swim w/:20 rest (descend time 1-3)
4x50 pull w/:15 rest (build each 50)
3x150 pull w/:20 rest (descend time 1-3)
300 (kick/drill/swim by 25)
4x75 w/:30 rest (free/non-free/free by 25)
100 cool down