Grats to ChromaKor for finding the new animation cancel glitch! I changed his approach a bit and found a new solution to doing the first slowmo; instead of doing a backwards flip, you can just use spirit strike.

A low 0:5X is possible with this with a bit more luck then I had.

I have many tries that came close to a 0:5X, but I sadly was never able to get it off. Good luck!