Mark Lewis wrote a review of RockyMounts Liftop 6 Universal Ski Rack on December 24, 2012
Familiarity: I've used it several times
I have used the Liftop 6 rack now a couple of times, and generally it works well. Installation was pretty straight forward, and the instructions are clear. There are also a number of additional spacers and screws included should you need additional room on your rack to mount taller bindings, etc. but I did not need to use them (I mounted the Liftop 6 on Thule square bars that are on the factory-installed rails on my Jeep Patriot). I also liked that they are from a Colorado company, although I couldn't find any labeling to indicate that they were actually made in the US.
Only downside I see is the exposed mounting cable on which other reviewers have commented. There is no getting around the fact that someone with a sturdy pair of wirecutters could snip these cables pretty easily, so I'm not sure I'd leave my skis overnight in an unlit parking lot in these racks. That said, if someone with a hacksaw blade was motivated they could just as easily cut the mounting straps on my Thule bars. Nothing is going to be completely foolproof, but for the money these racks are good value.