I have one of the new ones from the group buy, set it on a KL-1. I prefer it to my old E1E body and Z57, for the size of it and the tail-standing, plus I think the indents in the four faces of the body make a nice grip. I did prefer the positive click feeling of the Z57 - the switch on the VB1 is so light that unless I'm really paying attention, I can't feel the change from momentary to latched on.
But, that's not really a complaint. I prefer this setup to what I had before, although if a perfect match of anodizing is important to you, that might be tough to find.
Dave