Sorry if this a re-post. My first post seems to have been vaporized.

I have a 2013 SV with 15k miles and Michelin AS3 tires. The car is not modified.

I live near Myrtle Beach and have enjoyed the car's handling and cornering.

I recently took a long trip through Virginia and PA (about 150lbs of luggage between the trunk and back seat). On several parts of the trip, I encountered those awful cross-lane road gaps, the worst being on I95 below Richmond. While driving in those areas, I noticed that the car's rear end seemed to hop to the passenger side and then snap back. This was more than a minor thing and while manageable became unsettling. Especially where the road had these gaps for 10-20 miles. I felt like I was driving an old pickup at times.

Because of the better roads here in NC/SC, I haven't really run into this problem before. My goal is to reduce or eliminate this 'squirrelyness'. I was thinking a RSB might help, but I don't really know. I am taking the car to the shop to have them checkout the suspension for problems first.

Have any of you experienced this? Any suggestions?

Thanks,

Craig