Basically it was to do with trying to find a way to reliably get the juggle state off the first hit. I was hoping this hitbox data would maybe shed some more light on whats going on.
Copied and pasted from the testing thread:
"Turns out that back MP has two hits, the first hitting for 30, the next for 60. You must only hit with the first to get the juggle state. Tried for a little while in training mode, and its so inconsistent. Thought strangely it felt like it was maybe happening more when I was buffering the HK command dash motion in.
In any case, seems like its going to be very hard to find the hitbox sweet spot to only get the first one. Two hits is pretty easy to get, as is only getting the second hit. But only the first? Shit just happens ‘randomly’. If you do back medium punch on the ground however, you’ll see that the move has two ‘animations’ to hit as it lands, and that you can reliably get only the first hit off if you do it from distance. However, they are grounded, so that doesn’t mean anything for juggling!
So I’m giving up on getting this one down. Just gonna buffer HK command dash and hope I raida on reaction when I do. If anyone else can find anything else out, please feel free to share!"
Looking again at the hitboxes… maybe the information is here. I think perhaps you need to strike the opponent in that lower right hand corner of the first hitbox to only get the initial strike, as the hitbox for the second one is a lot higher. This is slightly confusing though, because I could have sworn I got the juggle off the tip off her hands…