I think this has been addressed in previous posts, but I can't for the life of me find where I read it.
Once you've hit 3 sets of 3-5 on an FBE and you've moved on to a harder progression, as I understand it you should still do the easier progressions as warm-up/maintenance sets for your main FBE strength work. My questions is would you cycle through a warm up set of all previous progressions for an FBE? Or do you just pick one easier progression and do a couple of sets of warmup.
For example, if its my horizontal pushing day, and strength wise i'm doing XR PPPu should I precede this with a warm up set of: FX pushups, FX PPPu, XR Pushups, Bulgarian pushups and THEN do the main strength work of XR PPPu? That seems like a lot of warmup.
Apologies if I'm over thinking things.