The roof top installations on our 2005 CCD were also very ugly as delivered from the dealer new in the fall of 2006. I've noticed, however, that excess, sloppy caulk is not necessarily a given on newer trailers. My guess is that it depends, possibly on manufacture, but certainly on the dealership. Our trailer cycled through 2 Ohio dealerships before our purchase, and again, my guess, is that each of them slapped on some more caulk.
Beware, a lot of caulk does not necessarily mean that there is no potential for leaks. When tested with the SealTec our trailer indicated a lot of leakage at the sewer vents, but none at the skylights. Since the roof caulk remains pliable, sometimes small holes can be sealed merely by squishing the caulk together. On the other hand, see this prior posting for a few photos of our sewer vents and comments from others, http://www.airforums.com/forums/f142...tml#post630222
. Squishing the caulk would not have been able to make up for a small gasket and an over-size hole into the Airstream around the vent stack. Given that so many of us have found that the original Airstream plastic vent and gasket installation was sub-par, to say the least, you should probably consider their replacement.