These are the two biggest issues. I have had my Hakkapellitta 5's on for a month but I live in Chicago and we just got another 6" last night. There is nothing wrong with Blizzaks. My last ones lasted 4 seasons here in Chicago. Just make sure you by what you need for the area. Try to also mount them on dedicated rims so you do not stretch them by mounting and unmounting them each season. Be prepared to see a lesser selection or availability this year due to some shortages. These are caused by the province of Quebec making snow tires mandatory this year which has caused a shortage in Canada and is now trickling into the USA. Hope this helps.