....does anyone remember maybe two yrs ago the M1 M207 filters had these very symptoms? A lot of us switched to the 3401's at that time....I maybe off on the time frame, but I remember these symptoms from a batch of the new black vs gray M207's...or was it just the gray ones?
I'm thinking quality control issues at the plant?
Why does it seem to much to ask that parts just work like they are supposed to work? I must be getting short of patience the older I become?
