I had the same experience with the ZII’s, very frustrating but it was my fault. I put them on for the first time right before the autox. I chatted with Rick some about his and he had about 500 miles on his and they were much better. I probably scrubbed most of the new tire junk off mine at this last autox, but left mine on and have been driving on them just to make sure they are broken in. They seem to be much stickier now. Well see in May B)