Someone non-chalantly dropped in the V2 thread proper some years back that the V2 lever was called "a boot clamp" and was never heard from again. I don't know why but that's always stuck with me.
So the problem I have with a "clamp lever" of any kind (including one for a boot clamp) is that the underside is rounded and does not allow for a fixed ledge on the clamped position like a Graflex clamp lever does. Instead; it seems to actually have a rounded area.
so at risk of opening the can of worms, I feel it is more like the lever for some kind of release valve. Something like you'd find on a T&P valve or a super small compressor. It's meant to be pushed down I think as an actuator.