Tried it on a bathroom remodel and the seams opened up instantly. Now I tape every time, but it still feels slow. What's the fastest way you've found to tape corners without messing up?
Oh man, I learned that the hard way too, and I even bought the stupid t-shirt that says 'corner perfection' as a joke. The fastest method for me now is a 6-inch knife and the pre-filled corner tape you can get. It's still finicky, but if you press it firm and immediately wipe off the extra mud with a wet rag, you avoid those nasty ridges and air bubbles later. Still end up fixing a spot or two, but it beats the old way by a mile.
That "corner perfection" t-shirt is too real. But is it ever that serious? Most corners end up behind a bookshelf or a piece of furniture. Even on a plain wall, you hang a picture or something and nobody ever notices a tiny ridge. I get wanting it to look good, but sweating over air bubbles feels like overkill for something you'll literally never look at again.