I recently replaced Continental Grand Prix 25mm wide tires with RH standard 28mm wide tires on my trek 420. Its not a fair comparison because there is a width difference and I think I put lower pressure in the RH but the RH tires do ride nicer IMO. I have streets with a lot of cracks, the cracks have been patched. The lines of patches seem to make the street rougher than the cracks did. It seems like the RH tires noticeable soften the impacts of the patches, especially when it is one right after another continuously.