bob I have the blue holder buthave never monkeyed around with the cutter since buying it 5 or 6 years ago. Outside of weight and speed thats it. I have lubricated the holder and I am almost positive at this point that it may be these 3rd party blades. The trouble seemed to start back when I finally changed my last origianl Graphtec blade about 2 months ago. I have no idea who makes these blades but after buying a new one today and basically seeing the same problem I am convinced.
I did order 2 oem blades from Advantage about 3 weeks ago thinking that this may be the culprit but for whatever reason the package has not shown up. I have them tracking it down ( I am in Canada... need I say more.
I hope it is this blade as it is packaged with a 35 degree indication on the box and I thought graphtecs had a 30 degree blade. I could be wrong but I hope I am not. This machine is a workhorse.
I might add that on larger letters I can see when it gets back to the origin to shut the shape, many times I can see what can only be described as a small gouge in the vinyl, as though it is overcutting possibly and digging into the backing
paper.