I have installed both types, the original Skyliner and the Winegard batwings on Airstreams. If you want to keep it simple stick with the Skyliner if that is what you originally have. The batwings are meant to hug the roof of the trailer which can be a problem in close proximity to the vents. They could probably fly off if they aren't cranked all the way down. I think A/S started installing the batwings in the 80's, an ok, popular antennae but cheaply made in my opinion. They look much better on a "white box" trailer. The new Skyliners haven't changed much, same mounting holes but they do give you the option of feeding the cable up thru the baseplate. I ran my cable just like the old one, crudely with the hole and a plate screwed down over the coax and caulked with Vulkem. Something about having all those old fashioned household looking aluminum elements popping up from the top of an A/S just looks so classic!