So I’ve been thinking about how Danny transforms several different ways early on and then narrows it down.
I’ve had the headcanon for quite some time that the reason he settled into and got the habit of using the ring transformations alone is they have the unique quality that he can stop and start them, with effort. So he doesn’t completely commit himself to transforming and can opt out if the situation changes so it’s a bad idea.
On the other hand, this is a case of sacrificing speed for control, at least until he’s gotten very practiced at them, and you want a very fast transformation when you’re, say, falling from the sky. Whatdoesthefauxsay posited to me that the reason he uses the faster ‘flashy’ transformations at the start is precisely because he had problems staying in ghost form in the air when learning to fly, and while by the point of MM this is less of a problem he’s still sorta in the habit of using them.