Ive had my plotter for about 2 years now and have cut near all of 5 20 yard rolls of sign vinyl, 5 yards of flock and just finished my third 20 yard roll of garment vinyl and the cuts are easily as clean as the day I started. The real trick is set the blade to proper depth. From what I can tell, all plotters, the blade holder is user adjustable. Having the blade too deep can do damage to the blade, cut into the cutter strip and tear up you material. The 2 cutters Ive set up had very good guides on how each machine needs to be done.