8.7.12 "Tabata Something Else"

WOD:  Tabata Something Else: 20 Seconds of Exercise with 10 seconds of Rest for 8 rounds of 4 exercises: 8 rounds of Pull-Ups, Push-Ups, Sit-Ups, Squats

I Did:
37 Pull-Ups (35.5-lb. assist)  (6-5-5-5-5-4-3-4)
62 Push-Ups (10-10-10-6-6-7-6-7)
71 Sit-Ups (9-10-10-9-8-9-8-8)
86 Squats (10-10-10-10-10-10-12-14)
Grand Total: 256

Tried to use less assist on the pull-ups, but the machine doesn't seem to be working correctly at the lower weights of assistance.