Mmmm so if I've understood it correctly flying magic wasn't possible because of interference, similar to when they were talking about it not being possible to use two CADs at the same time or rather you can't cast more than one magic at the time because the first one interfere with the second one. That kinda makes magic feel pretty limited if you can't switch magic on the go, or rather it's not very good at adapting to sudden changes in the situation unless you can override the first magic which seems to be up to ten times.
So what I don't get is if flying only requires a set of magic like acceleration etc this should be possible if you keep casting the same thing over and over but change some of the finer points like how much. I mean Tatsuya did cast three of the same magic at different strengths with the loop system without any interference hence I don't get why there is any interference in the first place.
And flying so won't make hitting balls of light easier if everyone else have to jump.