I would also like this info. It looks like RailGrab isn't available on Yakima's site anymore, and their online fit check doesn't say anything will work. Was this an older version of the RailGrab?
Thule suggests either:
1. AeroBlade 7603
2. Aeroblade ARB53 with the Rapid Podium Foot Pack and Kit 4016
3. Or, their normal square bars with the Podium Foot Pack and Kit 4016
I'm leaning toward the AeroBlade, but I've got a bunch of older Yakima stuff, and I don't really want to replace all of it.
Any other experiences?