I think you would really enjoy the rusko masterclass if you haven't seen it already:
https://www.youtube.com/watch?v=ZCfn8P2kBXM

I've also been working on getting this sort of sound out of massive, I've gotten pretty close with a saw wave with some phase on it and a low pass filter, however i cant get the kind of uhm... lurky (for lack of a better word) delayed sound to it. I tried putting an envelope with a long attack on ...