I'm not sure why people think they have to leave the SPCV for this. Remember when I posted that the bills comprising the SPCV and SPVC could, theoretically, both be followed simultaneously? Well, look at this charter.
There's no rule saying you can only be in one social group.
From what Rock said in this thread, and a PM, it sounds to me like this is the alternative for the other two and that this is sort of to replace them. But if I can be a member of both, I'll join and be VP. Or president, if you still want me.