I had that written once, and removed it.. I try to give people a little credit that they do have it in the correct position in the carriage head, BUT the last Graphtec person that came here for help, had the blade holder in the front, cutting over the groove, and ready to throw his cutter out the window. Glad you posted it AGAIN. It crossed my mind again to post it, when the OP said he thought thicker vinyl would work better. Why? Thinner vinyl works better, not thicker. You would hope that people could see whether they are cutting over the groove or the teflon cutting strip. But I guess not, Said he been cutting for 19 years. Said worst cutter he ever ran. Blah blah blah. Nothing but user error. Those 2 holes are there for a reason.