You got the right idea of doing the lp lk mp slowly, try this c.lk c.hp pause then do the magic series and see if it connects. Also try see if this helps, c.lk c.hp lp lk lp lk pause hp hk. I know it will connect with large characters such as sentinal hulk etc. But normal characters, I have no idea.
i tried doing that and that just puts the opponent higher. like magnetos head is at the opponents feet. and i miss the hp, i wonder if i dash up and then do hp hk if it would work.
im never really going to use this unless i have no meter and happen to land a c.hp after connecting two jump in attacks but meh… its fun