Hey, I saw this post and am looking to do exactly the same thing! As it's a year later, both Thule and Yakima have US versions that screw into the roof (no need to order from UK). However, the roofrails for the US version do not have the cutouts that the canada versions do. I'm planning on doing the dremel tool approach, but I'm afraid to do any cutting without getting as much info as possible. What exactly do the canada versions look like compared to the US versions? What exactly do you need to cut? Also, how do the roof-rails attach to the roof? Also, it's near impossible to get any information on where exactly to cut. Do I need to remove the rails to see the attachment points?
