Anyone else using the reflex wipers from Canadian Tire on an S series or any other car for that matter? My first set was fine for about 9 months then they started to curl on the ends. I bent them back into shape and got another few months. My second (present) set started to curl after the first month. I really like these wipers because they don't lift at higher speeds but I don't see the use in paying that much for a 22" wiper that is only clearing a 15" path. Basically wondering if anybody else has had this problem if it might be the curve of the windshield, the length of the blades or just the cold here in NB, Canada.