What wimberly does it take that OFF and put their clamp directly onto the stud, which takes advantage of the anti-twist nubs present in the AS stud.
Kudos to Wimberley keep up the good work!
That's exactly what I did when I fitted mine with their clamp. Wimberley includes instructions online to that effect too. Of course, that was an easy do-it-yourself job before AS decided -as reported- to use some strong glue.
I don't even have the platform to worry about that, and I believe even now the Z1 that comes with the circular platform isn't locked down.
So, I haven't actually used a pro (knob) system yet- always had a Manfrotto RC2 with flip lever. I do like the lever lock of the Z1 a lot, so I need to find out how much I like the pro system. I have a gently used C-10 on the way for my monopod (234) where I wouldn't want to use a lever system, and then I'll also find out whether I prefer the pro more than the lever. From what I've seen from the videos, the C-12 seems like a very versatile system and perfectly suited for the Z1 if one likes the pro system. And then I need to start worrying about getting the QR off...