I thought about the weight, I think they'll be about 150# each (if two) ... how often will one have to mess with them ? Especially if Rolls, they shouldn't have to be moved for years. The last time I moved mine was when I replaced them years ago. And I would think to minimize the connections and the wiring, would be better, no ? Of course, all this depends on my access, which I have not yet determined ! cheers, John