We went from a 29'TT to a 43'TH, you have adjusted to the worse part, backing a 5'er. They are lazy compared to a TT, but that being said I can get the TH in and out of far tighter spots than I could with the TT due to the ability to turn much sharper(of course my tires look well worn from where I have to jack it in to store it at home).
My concern is the height, the TT was 10'6" and the TH is 13'4" with a flat roof so it's tall all the way back to the rear. And I fear low branches in the campgrounds, its much easier to deal with the fuel stops as most all canopies are marked or easy enough to gauge off a nearby car/suv/etc. But since the bedroom is over the bed of the truck and way up it can be hard to see your clearance in the mirror in the dark.
