Yukari BnB timing is rough at first, but once you get it down it just feels really natural. Just keep trying to get the Bomb as early as possible and then hit 5C as fast as you can. Some people tell me they hit 5A during each hit of 5AAA to keep in time, but input 214 on the last one. Just keep practicing it and you'll get it. Her combos are hard to learn, but at least once you get her main routes down, you can do anything. Not really much outside of Bomb, IAD, and Wall-sticks to do.
Fuck the wall-stick route though. It's really annoying.
Fuck the wall-stick route though. It's really annoying.