So I've decided to that I'd try situps this time.... or at least today.

 

Situps: 18+27+19+19+(29)=112

Squats: 19+24+19+19+(35)=116

 

I've done this at level 2 instead of level 3 and it's definately a lot harder than crunches.  I've barely been able to finish level two here, maybe level one would work for real situps.  I think I'll go down to level 1 and keep doing real ones as I can totally feel a difference in the workout.  Crunches suck.  I'll probably push off the pushups until tomorrow since the abs are a bit sore now.