Waaaaah, I've re-discovered soooo many strange details of Sonic's moveset this week... but there's no fighting it. Tenki knows everything.
EXCEPT FOR THIS!
Sonic's Battlefield Crystal-Jump ASC Dive Recovery Tech! (SBCJASCDRT)
Hop off the side of battlefield and ASC inwards toward the pointy crystal at the bottom... just as you pass it, jump-cancel the ASC in position so that you can wall-jump off
the opposite side of the crystal from where you started... from there you can follow it with an Fair (cuz it looks cool) but inevitably Spring > (wall-jump if you want) > recover on the opposite side of battlefield.
It looks so cool. It's ridiculously dangerous; the spacing required for that jump-cancel is absurd. It's totally unnecessary since you'd be better off just ASC'ing (or even just SD'ing), jump-cancelling under the opposite side of battlefield, and then springing, but it's way cooler to wall-jump off the opposite side of the crystal... but most importantly.....
Tenki didn't know you could do this... if only because he never thought to try it.
WHAT NOW!?