Now I have little bit more experience about the new zLine tires. They are so much better than my old Pirelli P Zeros. It think that zLines have more traction on the wet surfaces and have better grip during the cool weather. However, they also lose best grip when temperature goes under 50F. Last weekend we had nice ~80F weather here in Florida and tires offered enjoyable ride with better acceleration and steering response. My initial feeling is that tire noise is just a little bit less than with old Pirellis. I need to confirm actual tire noise during the longer highway trip.