Also, I managed to get to this one door "requiring" Space Jump.
The one door that you jump onto the statue and jump into the alcove to unlock the gate to the door, I managed to 3BJ into it. I had Space Jump at the time but there's no doubt that without it would make it as I overshot by a lot. Bomb jumps seem to give a lot more height these days.
This seems to answer my question in the spoiler thread, I spent a lot of time messing around with getting missile expainsions after the one in the room with three Morph Ball cannons and a deseased Luminoth. And started to wonder if I was getting some of them early, now I'm sure I have.