Ok. Just got out of the lab and I’m quite proud of this actually. Also, I’d like to thank you. Anyway here’s the solution.
Rapid Slash (3 hits) xx Spiral Swords, Backdash Cancel H Stinger xx Round trip, Tag into Dante, Volcano, j.H xx Air Play, j.H into shot loops
The trick is that you can’t let him back dash the whole way. You have to cancel the back dash with the H then do stinger and the rest. On smaller characters I found you need to omit the Stinger. Actually I found it’s more consistent without the stinger all together, but hey, I’ve only tested on strider and skrull so far. I will be back with more info on character specifics when I can. This is quite useful.
Edit: Ok. Tested on more characters and I found it’s better just to walk back a little bit instead of back dashing. It works against wolvie and strider that way. Doesn’t work against RR because he’s a bitch, therefore it probably doesn’t work on Joe either. Oh well, not that many of those characters anyway.
Another thing is that it doesn’t work in the corner. Like if you rapid slash into the corner with your back to the wall and you can’t walk back or back dash then just do a regular RS combo.