and he points to a rack of barbells that are preweighted all the way down to 10 lbs. I was like, what the crap!
I was wondering. Most, if not all, gyms have 'em. Those numbers mean you can definitely use the bar (and some weight!) next time. Have fun.
With the situps, that probably needs some experimenting to get a better idea of what's causing it. Hopefully, Carl knows what he's doing in this regard.