From reading this forum, I understand that Blizzak's are pretty good snow tires. After last winter with no snows, I am running out to get some this year. My tire guy has suggested that Blizzaks have some adhesive that makes them great in Year 1, but not so good after that. Do people have this experience? Also, which Blizzaks are suggested? I thought there was only one Blizzak, but now see a WS-50 and an LM-22. Not sure what the difference is. Any guidance would be very much appreciated. Thanks!