The gap isn't big enough for anything EXCEPT the FB because it's armored. That doesn't make B112 "unsafe."
If this is your definition of "unsafe," you're a fucking idiot.
Not hard to figure out.
B112 is -7 when the full string is blocked making it relatively safe. When, flawless blocked, it is full combo punishable with U2. A fatal blow will interrupt the
gap it has.
3U2D2 cannot be interrupted by fatal blow, but certain fatal blows, such as Jax's, can
punish this string after blocking it completely. In fact, if you mash fatal blow anytime during the string (not after), you will get hit. This is because 3U2D2 has no
gaps in it.