Tuesday I put 350 miles on my new to me 1998 Connie. Charlotte NC to Durham and back. All slabway, but did have open road in posted 70mph zones... 30 hours later I still have some numbness in my right hand. I see there are Murphy after market solutions. Other choices? Or do the balancers really work and worth the money? Or is this pointing to other issues I need to address? Charley