I'll be getting 4 Rv's, I planned on 6-8, but found a better power source option. Instead of spending 2 grand on a backpack and quickplate, then more on power I can add this sucker
http://www.viewfactor.net/index.php/...j-top-x-1.html
And power for about the same price as a backpack and quickplate w/o power.
Thought I'd share with you guys as something to consider. I'll let you know what kind of run times I get off both but I don't think this is an option you can pass up if you want to run Bricks. It was a no brainer to me. I shoot outside in the cold and while RV's are nice, I like the idea of this set up even more. The pictures show the simplicity of how easy it is to connect. Before when I was considering Bricks I was looking at a belt clip (heavy and awkward for shooting in some instances) and the additional cable you had to buy for $190. And attaching it to the camera seemed like a better fit for my work.