I’ve been working on double (ring-to-middle finger) M’ flicks for H Perm, rather than the paired single (ring finger) flicks that I’m used to. This wasn’t so much about speed as smoothness; at about 2.2 seconds, H is already one of my fastest PLLs. But I did pick up speed. With just a few minutes of practice, I got H Perm down to about 1.75 seconds. Here’s a quick video (my first edited in Final Cut Pro X), showing both approaches.
(music: “Cissy Strut” by The Meters)
Transferring this to Z Perm is going to take some work. It’s easy in H Perm to just go double-double-double-double. Much harder in Z Perm to go double-double-single-double-single. Working on it, though. More helpful, still, would be double U flicks. I’ve been having a hard time with those (these stumpy fingers of mine!). Maybe I’ll get the smaller 55mm Zhanchi to try to work on mechanics.
As for the Camcuber Zhanchi popping montage at the end: That might have been a little too (indirectly) critical of a cube that I’ve come to like even more since reviewing it last week. More than anything, I was just surprised to have so many pops on it — especially since I almost never pop a Zhanchi. I suppose I was pretty rough on it when I was learning the double-flicks….
adventures in cubing 
You. Turning is a bit rough and your fingers are to stiff, try lossening up before cubing
Ah, no doubt! It’s funny when you create a video like that, as a sort of snapshot in time. These double flicks are easy-peasy for me now. I just tend post right when I’m learning!
Thanks for the comment.