Things I can think of:
For the stage spam, I've never bothered memorizing an exact route, but the key is to at least memorize the spawn points of the "big" fairies and take them down before they're able to throw their extra-dense danmaku at you.
For the boss opener, be sure to shotgun it as much as possible at the beginning. That blue wave sucks, and you don't want to have to dodge it twice. If you're using ReimuB, remember that unfocused shotgunning is better than focused.
Spring Kyoto Dolls is purely aimed. It'll be static provided you perform the same motions every time, so it's micromemorizable.
Hanged Hourai Dolls is a slow card that can have a tendency to wall you, so, if you aren't already doing so, make sure you expand your field of vision and look farther away from your hitbox than you might for your average spell card. You need to be able to see the walls coming and move out of their way before they actually manage to wall you. I'll also say that this spell has an aimed component as well, although it's a weird card and I don't know how you can actually use that knowledge to your advantage.
Everything else should be standard read and dodge stuff. I'll also plug my
perfect and
unfocused perfect videos here. Maybe you'll see something in there that'll help you that I'm not thinking of right now.