Hello!
I am (sort of) a noob at Touhou. I have recently began attempting to 1CC SA on Normal, using Reimu/Yukari. However, Border of Wave and Particle is a pretty difficult spell. Unfortunately, I haven't found any good guides to safespotting it. I managed to pull it off once out of two tries in Practice, though. Anyone have an easy, consistent way of doing it?
But wait, there's more! This thread is meant to be an overall place to learn new safe spots and offer ones from your own experiences. I know of a couple to offer in exchange:
Sagume's yin-yang spam spell has an easy safespot. Just stand right on top of her. I think you can get away with shooting, too, but I'm not sure. I've done this on Normal, and I believe it is also doable in Lunatic.
Curse of Apollo 13 has a pretty famous one. It's tricker to pull off the harder the difficulty, but I can consistently do it on Normal. When the spell starts, stand on Eirin's feet. When she moves away, tap up twice until you're in the exact middle of the circle of bullets. Depending on the shot type, you might even be able to capture it. It's a lot easier with Reimu's haxbox.
So, yeah. If you know of a safe spot, or need help with one, just post here. If there's already a thread for this, though, then this can be locked or whatever.