Sorry Ben, when I saw Valais, I should have started off "Bonjour" instead of "Grüezi", but like the German language better (it's my second language, and I spent quite a bit of time in Aarberg in Kanton Bern, as well as Innenschweiz between Aarberg and Luzern, and would DIE to go back for another extended stay until I gain 100 lbs from eating Rösti each day!) But you are right, it is absolutely stupid of the dealer to mix tire types, they should know this like a basic rule!!! I feel pretty good about Radials being better, I went from normal tires to Michelin Radials on my old Honda Sabre, and it was truly a night and day difference in handling (MUCH more responsive and sure-footed!)