09 DC Long bed. Snugtop Cab Hi 'bout a month old - also had the Thule mounts installed by dealer (not hard to do - but easier to get it done by them before mounting on truck). Regarding Roof Racks - the Snug Top had a thick roof - high load rating. I think any of them you may be able to special order for higher load ratings.
The dealer recommended the piano hinge vs the sleeker (hidden) glass mounted 2 hinge on higher end Snugtops and others - he caled those the "SUV" tops. He said the piano hinge will last longer under my conditions. They also pointed out that (over the long run) framed (aluminum or other) windows provide better seal than just the fiberglass molded window frames.
I use Truck for work. Much of it offroad. Topper allows to securely stow my equipment, and fairly theft-proof. As good as any could be I suppose.
The Snugtops were most spendy on his lot - sold Leer and Century also. These are the brands he ended up marketing after 35 yrs in the business.
Like it so far, did some extra weatherstripping at installation time to "dustproof" and has worked extemely well so far (I hate the bug dust on my gear - enough of that on the outside of the rig!).
This is snugtops "old style" top with the sliding windows. I really was leaning toward the Super Sport or Xtra Vision models - those "SUV" styles. One other thing I noticed is the extended sides that run over the bed rails. Other toppers tend to sit on top of rails.
Reason I got this one? It was on the lot and dealer gave me $100 off.
I guess he invested too much time in me to have a sale slip by...HaHa