Alright, clearly it's a lot about practice and taking time while upside down...
I CAN do a basic invert, but usually while I'm there I'm trying very hard to figure out my leg position. This is certainly something I'd like to work on and practice in other ways, obviously.
However, the reason I say I'd like to be more flexible for elbowstands and handstands is because the idea of fligining my legs up against the wall sounds... well, frankly, loud and possibly destructive to my fragile drywall walls :P My thought was that, if I could get into them with more control, I would be a lot more stable.
Honestly, I have never successfully done an elbow stand, or handstand.
I will take a little more time while inverted to focus on breathing, though, and see how long I can stay in that pose, instead of trying to just move through them.
If you guys have any tips on elbow- or handstands, I would very much appreciate them. I have no idea how to tell if I have the strength without actually doing it, and the only way I know how to do it is by throwing my legs up over my head... and I don't have the skill yet to balance. It's a strange kind of catch 22 right now.