Thank you, Steve. I might have written my query poorly. The front lever progressions are coming along splendidly and have, in fact, become a favorite.
But I've somehow gotten it into my mind that exercises should come in pairs: a push deserves a corresponding pull. I originally tried to use the planche progressions as the "push" component. My body, however, does not like them.
The question I probably should have asked in my original post was this: what exercises do bodyweight people do to work the posterior chain?
The Planche lean is very similar to the planche in terms of building straight-arm pushing strength with the arm in flexion. However, it is much easier to scale back (you can determine exactly how much weight to use by recording where you place your hands/feet). It also doesn't have a balance component, which makes it a lot easier on the forearms.
Just start at the top of a push-up (fingers facing somewhat to the sides) and lean forward little by little until it feels challenging. Be VERY conservative. Only progress in lean once whatever lean you use for your workouts doesn't seem to stress the biceps tendon anymore (you'll understand what I mean once you try it).