Jacqui literally outspaces herself at pointblank range. Its absolutely ridiculous. Her jump in has too much pushback to B3 after, so your mixup is ruined. On full auto, anything into guns basically works against you since now your opponent has an advancing normal while you have absolutely nothing. Even at point blank range, playing Jacqui is like trying to decide how to screw yourself over less, its rough. (I speak from having a decent amount of High Tech experience, don't have much knowledge behind Shotgun so I might be biased.)