Has anyone else had problems with their Harbor Freight blades that we ALL had to have? I've opened up two different pkgs. and all four blades have skipped when I cut fabric. There's not a nick and I've looked at them closely and can't see where the problem is. I feel bad about having all these blades that may or may not be damaged. How many pkgs. should I open to find a GOOD one? I gave my DM & one of her friends over 20 pkgs. and now feel I should warn them of the possible problem with the blades. I know I went crazy when ordering these(I got 30 pkgs.) and also picked up 16 pkgs. while on vacation in Oct., but have given over half of them away. Should I go ahead and open another pkg. or just bite the bullet(and pay three times as much) and get them at Jo-Ann's (using a coupon of course) and put these blades up for another day,lol!!! I had bought extra with the intention of putting some in a SQA pkg.!!