I have the SZ50 non-EPs. They rock. The handling is better than the KDW's, they are much quieter and with a 340+ treadwear rating the EP's will last longer! S 03s have a low tread wear rating, but handle like no other. Some sizes are back ordered! I'm getting another set of SZ50's for my 17's. After having the SZ50 I'll never get another pair of KDWs, they are worth the money!
-Andy
