I got a Saris Bones 2 bike rack recently, and I'm having a bit of a problem with it.

I have a Mazda Protege 2001 sedan, by the way.

The two side straps are constantly slipping down to the front of the trunk (towards the bike rack), and the rack jiggles unnervingly when I drive. It makes driving with it uncomfortable and sort of scary. It just doesn't get as tight as I would like.

As anyone had a similar experience? Any secret tricks I should try to get it super tight?

Thanks,

ds