I ended up skipping the last week of workout 2 because I strained a muscle in my back at that point (which, yay, cleared up quickly), then was hit with a cold and a migraine in succession. I went ahead with 3 just because I needed the motivation of continuing (and the illusion of progress!).

I've only done the first workout so far and had to skip the bodyweight matrix because my head had the tension in it that often presages a migraine if I overheat or overexert myself. (I have doubts that I'll be able to do the jumping part of it anyway, but suspect that a half-assed workout is better than no workout!)