"10-Up"

What was the most challenging part of this workout for you?  Always interesting to see how the same workout can effect people in so many different ways.  I vote sit up!  Here is a gallery from todays action.  Click photo.

Workout:

"10-Up"
10 Maneaters (25/35lb)
20 Burpee Pull Up
30 Box Jump (24/30in)
40 Pull Up
50 Burpee
60 Calorie Row
70 Lunges
80 Sit Ups
90 Double Unders
100 Meter run