Yeah, deffinately heavier than Vs (and other rim brakes). I'm not sure about discs though?
Disks are almost always heavier than V-brakes, but compared to Maguras -- difficult to know. How much weight was added to the frame+fork to reinforce them for disks?
[Hey, I'm just trying to fit in with the usual respondents in this forum and their responses to zombies and all that.]