So I found out, and don't know if this is known or not, but in Pazuzu's Tower, you can jump from a ledge, across to stairs, whereas jumping from ledge to ledge is illegal.
I think it's because stairs occupy both height values at once (or something along those lines).
Again when I did it, it was a worst floor Pazuzu Tower, and I don't know the game well enough to know if it's useful in the main run. Just figured I'd document it in case it's valuable.
Earlier there was a pastebin up with all of the level by level strategies, but it seems to have been taken down (my bookmark is dead at least). Does anyone still have that?
It'd be super good to throw into the resources/guides section, as it was helping me tighten up stuff for sure. Super appreciated!