Somebody brought this up a while ago. It's really good, one of his best corner set ups imo. This can be done after b112 as well. It also reverses the opponent's wakeup inputs, and can even hop over certain wakeups like Batman's slide. You could use MB f3 to be even safer. However MB f3 actually crosses them up if you don't move at all, so you have to take a very small step back if you don't want the crossup.
This is probably the closest thing to a "vortex" Batman has. Some easy ways to set it up...
223, f3 (reverses positions), j2, 1~sky grapple = 29%/33%
223, j3, 123, 1, b112 = 32%/36%
113, f3, j2, 123, 1, b112 = 32%/36%
b113, b23, 1, b112 = 29%/33%
123, j2, 123, 1, b112 = 30%/34%
b23, 1, 123, b112 = 33%/37%