Workout

Warm-up (600)
300 swim/200 kick/100 drill

Set (600)
6 x 100 w/:25 rest
...50 free/50(25 drill/25 swim) 
...IM order 
 
Set (1500)
3 rounds
3 x 100's on 2:00
...50 free/50 IM order by rounds  
200 IM on 3:30/3:45/4:00
...d1-3 

Set (400)
8 x 50 dps w/:20 rest
...-2 strokes each lap  

Cool-down (200)
200 EZ