You're right, but you can certainly beat them with any move you have in Prep, correct? And if they like ducking, you have Prep K. Plus, it gives you a nice frame lead for SE so that you have even better mixups.
(putting in the guy I'm responding to)
1. On Margarine: It's totally not Butter
Prep is not really a 'mixup'. Prep, once your opponent has nailed you down as being in Prep, is a chance for
you to die.
It only, and I mean only, works against one sort of careful/professional mind, and that's the guy who is ducking 100% every time, and has trained how to stand to Prep K / JG the two-hit strings. (And this person exists.) It works here by you doing Sway every so often, because he has gone all defensive waiting for a block, not an opening; then, if your yomi is godlike for the Sway, that will make him quit that shit.
... until he just starts TCing you to death, because even with +, Sway is slow, and he knows you know he'll just dare you to do the Prep K. Still, you made him do something, and not by conceding your prep entry. The problem is the numbers. To keep up with the opponent's damage potential in comparison to yours, you have to rattle him so he keeps choosing wrong.
2. Building Better Bread
You're thinking in terms of "this could work because there's a mid, and he can't always stand." A strong player will scope out the weak point in a basic setup like that and run you through, not "mindgame himself"
(thank you BrianHates). He
can stand forever, because he's not going to lose just for doing that for 30, 40 seconds; and with all those opportunities for + frames you surrender, he'll probably kill you faster.
What -you- have to do is the timing changeups
(same guess in slightly different advantage - different Preps), and abuse how the opponent can never follow what you're doing as well as you will follow what you're doing (because you're you, and the other guy's playing his character). The situation you've picked out is too peculiar for it to escape notice. It is all too conspicuous, and you have to be cautious of overly conspicuous setups.
Clarification: I mean doing this 'reset' after "a possible Prep BBB." The first time you do it , if you don't do Prep BBB, it's on someone's mind. You can mess around with their head, but you can't avoid the fact they're paying attention now. That's "conspicuous".
You should aim to make everything so sneaky as to not come on the radar until after the opponent ate it. Even if he blocks it, he should then feel hesitancy, and that he made a mistake because he did not do something else he just barely is able to determine. Make it so his true escape never actually -occurs- to him, and
then you are playing well.
If we're talking about gimmicks, then Prep K might work, and if it is working, I defer to wisdom on exploiting things 'just enough' to make people apeshit, and not invite counter, which is a fine art that the highest players compete to perfect. Even a scrub can just block Prep K and might punish. If Prep BB~BB~BB is working, then do that. Do that forever, and be sure to Sway on the break. (and go for Sway A, not B - this is a player who will probably screw up the huge disadvantage he has from BT if you let him run into your sword.)
When your rival shows you that escape you did not anticipate, take good notes as you can, because he's redrawing the box you are playing the game in.
(These moments slip past in confusion, of course.)
*~*~*
Side note: Where did you get +11 from? I devour all things framey, and +11 would guarantee a (StunHit) Prep BB~Prep BB. Does that actually happen off Sway B, CH 3(B); or something? I want to swear it doesn't but I can't say I 've used resets other than 3(B) in this game (which wouldn't even count as it's more like a dropped combo...).
