Can't speak about the quality/tow ability of Eagle HT 5ers, as I have an Eagle TT. I've been full-timing in it for 6 months, now, and have had only minor issues - which I took care of myself. Mine does have the dark brown cap, and I've had no fading whatsoever. I recently waxed it for the first time . . . now it really
looks nice! There is a couple with another Eagle TT just a few spots away in the park at which I'm wintering. There's is the same year as mine (2013), and also has the dark brown front cap. There's has some serious "chalking" at the top - right where it curves to form the roof. I suggested they try a mildly-abrasive scratch remover to remove the chalking, then give the whole front a good waxing. So far, they haven't followed my advice. Why is there's fading and mine is not? My only thought is that (when available) I always choose a shaded campsite. Maybe they prefer sunny sites. Sun seems to be the culprit causing the problem.