Probably a dumb question, but have you tried just changing the speed? Some papers just require different speeds and pressures. So sorry to hear it's still not resolved. How frustrating.
Married to my best friend 10-16-1993
DS #1 08-16-1999
Huh, strange. Maybe it was just a bad blade before. I haven't had to change my blade at all yet. I guess I don't use it a lot, but a fair amount when I do use it.