after a good 3 x ss.
b4 is the best option, but slow and often you will not be able to tell which way is b, u end up with rfs, 4 which is 28 dmg, not bad too, but duckable.
1, d/f+2 is one common option, it lead to juggle on the back, leads stagger on side, ff+3 or b+4 can combo.
3,4 is also a good option, combo on ch, combo from back, never misses, safe on block
1, d+44, seemingly good, but the second hit of d44 will often miss if bob is not directly behind opp, only stable juggle after d44 is 124.
333, better than the one above, but same whiff problem, more damage, and start off with a mid move.