I have had a few people asking about my roof rack recently.
The only thule bars i found to fit are the 'gutter' fitting type. They are a bit high but if you need to carry something they work perfectly. THis is them !!!
I have just lowered mine a bit by cutting down the feet, here's the foot comparison. The origonal is on the left. Please note the new hole needed in 'hook' clamp piece to keep the feet pulled down and secure. i have not taken a pic with them on the VX yet but I will take a photo as it has made a fair bit of difference!!