thanks for the info bruce. I probably should have considered it when I put 8 new tires on the bus before picking it up. $10k is a bit steep, but may be something to consider long term.

I'm not sure if I explained my ride "feelings" correctly. I have balance masters, so I don't have a problem with moisture disturbing the balancing. What I do have is a heavy front-end, and rough roads (doesn't even need by horribly rough) can sometimes be unpleasant.

What I discovered is that when I started early morning, with temps down in the 30's and 40's (i.e. tire pressure was lower than normal), the ride was smoother. I attributed this to the lower tire pressure at the time. As we drove, and the tire temperatures raised, it seemd to get a bit bumpier.

ray