I think the Rainier is only 10 lbs heavier (empty) and the same folded measurements. I think the only difference is the overhang. Have you had four people up there?
Anybody else have beta on the Rainier or Hood? (even better beta if paired with a Snugtop XV)
The Rainer is the overhang version of the Hood.
There are more pics of my setup in my gallery if you want to see the placement.
So far I've been the only one sleeping in it.
For a family trip I see my wife & kids up top with me in the annex.