I tried to throw a yo-yo away. It was impossible.
Ya it could be, I didn't really try to retest it on sub yesterday, I quickly did this with shao like you proposed and no matter what I did everything connected. I also don't think it'll happen much in a real game because it always connected there, but they usually tried to jump or press buttons which is what got me to think about neutral ducking to begin with.I think you just need to tighten up your timing. If you set the dummy to neutral duck, regardless of the starter string (as long as they're still standing) if you cancel into db3 in the corner you can catch them with b2 or s4 before they are able to duck.
But I went about testing it differently the other night. I set the jade as the ai, recorded the scenarios and I controlled Sub. As soon as I got hit by what I wanted to get hit by, I held down. It could be something weird about how I did it because I would get weird playback results from jade sometimes. For example, following up the connecting db3 with the b2 string would sometimes result in 214 or the b2 string depending on what I decided to get hit by. Sometimes I would get the whole b2 string if I blocked it all and the db3 would never come out. I'm pretty sure I wasn't hitting any extra curricular buttons when doing all this, so I'm not real sure what was going on. Maybe PS4 was getting into the Halloween spirit and was possessed.