Great review!
Not really a RTT guy (yet?) since we have a T@B Teardrop. I even put some higher profile BFG T/A tires on the T@B to gain 3/4 in clearance, in the hopes of getting her a bit farther off the pavement.
Using your RTT 20 to 30 nights a year, I assume you leave it on year round? I cant imagine hoisting that baby up and down. My Yakima Skybox is hard enough to get up there!