And -- if you hold your legs in an L-sit -- you get the upper body stuff, plus some ab work. My form is lousy in this example -- the knees should be straight, the toes pointed, or the judges take off for it; and the best way for full ROM stretch is to go for a straight-arm hang between reps, but this was my third set of the day. I did it that way the first set, honest.
(I also only did six or eight reps, instead of my usual fifteen or twenty, just to, you know, keep the video from getting too long. And so I wouldn't make all the young guys feel too bad ...)