Here's my Sport Limited with factory aerobars and Yakima Fat Cat 6 installed today.
Please note, that I've owned the Fat Cats for a long time and I do not really like them. While they are really nice looking, sleek and low profile, they are a massive pain to install, don't clamp down easily, and things seem to break on them quickly.
I bought an INNO Rail Slider II ski carrier, but it does not fit the rear aerobar. The attachments are too wide for the factory bars.