Well, I don't know, do you normally play against robots?
Red dash into red slide is 20 frames if your execution is perfect every time. This is just not going to be the case every time. I've played Skarlet long enough to know that characters like Sonya, Sektor and Reptile can wreak havoc on you for abusing red slide to make blockstrings safe, outside of a select few strings with enough cancel advantage to prevent any kind of interruption. Kenshi is also a huge threat to her, because he can punish any red dash out of a string with EX upslash risk-free (unless, again, the string has enough cancel advantage to cover the 20 frame window). Out of a string that jails and doesn't have a whole lot of cancel advantage, such as 1 1 4, you're much better off just ending in a double knife toss (provided your opponent is standing) to be safe. Your opponent has no way to beat it, and you can cancel the first knife to create space or go into potential mixups.
Funny, you don't sound nearly so tough when you're out of your element and/or don't have your GFAQs boys to start a circlejerk with. B1 1 F4 is the same amount of negative frames on block as Kung Lao's low hat was in vanilla, by the way. Something to think about, for those of you that claim it's unsafe as though it's a free combo punish for everyone in the game.
)
