Howdy everybody, I just had one question since Im inexperienced with bike racks. My bro just got into cycling and got a THULE rear trunk/door/hatch rack. It works great and fits nice on his 2003 Toyota Corolla. He even went so far as to try driving around the neighborhood with all three bikes on it for a "test" and they stay put great (even when he tried hard acceleration and hard braking) But I noticed the bikes swing back and forth just a bit on the rubber mounts (swinging in toward the trunk and out) is this normal? They stay put great! I just dont want to make anyone out there on the road nervous. Any help here is much appreciated!

- Joshie Boy the Cross Country Maniac