The garu combo, you mean? You can essentially [9~3] everyone, but the time of [9] is different for all of them iirc. I recall Chie/Aigis/Teddie being impossibly hard, and Mitsuru/Kanji/Yukiko being easiest for the non [2] characters. This is why I like the j.236D FC loops, because you use [2] for every character, and while you can add an additional garu, it's only doing 300dmg at that point in the combo. Furthermore, after the last allowed garu, you can just 5B > 5C > stuff. I never use garu combos on the hard characters, with the exception of the j.236D FC ones and the garu elevator. Getting lower consistent damage is better than taking a gamble at getting big damage.