About Hurricane's dash-transforming trick...

I know about transforming right after a dash but I feel like I'm not doing it right. I was observing a Hurricane that killed me during a BR match and I saw him zoom through the sky(sometimes while falling down) while cancelling, but whenever I do it, I feel like I'm moving at the same pace as I do while flying. I could get a boost if I transform while turning, but I can't make it look and feel elegant and seamless like the pros.

Is there something missing or am I doing something wrong? It's bugging the heck out of me, especially since Hurricane's my most-used mech and I get its key trick wrong.