Has anyone tried using a strap-on bike rack on a 2009 C4 hatch (eg. Yakima KingJoe Pro 3) since adding a hitch is $$$$ just for a bike rack. The worry is the plastic spoiler above the window cracking under pressure from a strap. I guess I could put a piece of wood under the strap to keep pressure off the spoiler, but if it is not a worry, it is not a worry, and if it is, it is

Thanks for any feedback, Cheers,