I run a private server with some friends. As I understand it, the point of Voltz is to keep the server and clients all running the same versions of all the included mods for the sake of consistency, which would be a great boon for public server OPs. Given my situation, perhaps my group should just maintain our own version of the pack and forgo Technic.
Oh, and to the devs: I understand things happen and versions need to be pulled sometimes, but communication is key. There ought to be something stickied, even a simple "Sorry guys, Voltz 1.1.0 is being pulled for maintenance."