Mind Games and Mix-ups: Or, Make Opponents Take Your Hits and Like
4KB is unsafe. It's punishable by Mina's 6B+K. It's a very situational move (for me at least) since it's not a NC. You really have to meet one of these conditions for it to actually be useful: it's a counter hit or if you want to auto-gi, either it has to be a JI, or that you are far enough away that K whiffs and B hits or you'll just get blocked and punished after your own auto-gi, which is crap lol.
A nice little part of my game revolves around 2B. It's a lovely move, it's safe from 236:B from Soph (not that it matters but it's nice to know), it brings you into FC from some FC shenanigans and it looks exactly like the B series. So if it's block, they probably won't try to step the second hit or you can teach them not to step because if spaced correctly (always try to use it at the tip), if they try to step, it's a nice easy 47 damage from B,B,B. Try to keep that fear fresh in their minds.
There are plenty of options after 2B. My favorite is 11B and FC 1B. Lows that are fast enough that they have to be really looking out for this mix up to block them. 11B is to further reinforce don't step and FC 1B is if you're looking for some space, it'll push them out far enough on block/hit that it acts like another B4B except you move the opponent. Be careful though, at the very extreme tip range of 2B, it will inch them out far enough that FC 1B won't push them out far enough for you to be safe, you will get punished. FC 1K will usually whiff at 2B's tip range so I usually don't do it. If you do land it though you'll get a nice 3B after FC1KK at tip range.
So, if they're looking for mix-up now and they start ducking, give em a WS B, it'll give you a nice A+B after it. Though, WS B has the same problem as FC 1B, it'll whiff at the extreme range of 2B. Now, you can also give em a 66B, if they start to jump, it'll slam them down giving you a FC 1B after it. Then if they start to back off, instill the fear of a tipped B,B,B into them again and get them to stop.
All these options are relatively safe on block and hardly ever punished if they guess right so that's a real plus. Now, the only problem I have with 2B is that if they know it's coming they will step it. What better way to stop this mix up then to step the setup lol. Anyways, I just try to keep them from stepping with 8A+B, 11B, A+B, and 2A+B(great for more FC shenanigans with the cancel!) and at times 1A if I know they like to go high.