5x 45° Summa D Sign Vinyl Cutter Cutting Plotter Blade

I ordered these blades for my Summa D Plotter a while ago and I'm just now getting a chance to use them. They are very sharp, but they cut terrible. Every time I tried to cut anything, it would cut distorted.After comparing them to my old blades I found that these new ones come to a point on one side, where my old ones cut back so that the point is more towards the center. The profiles are completely different, which would explain why everything would come out distorted.These Plotter Blades are unusable.

These blades do not work and adjusting the offset does not correct the issue, the seller has no knowledge or understanding of the product. I regret purchasing these blades, I spent several hours adjusting the offset, purchased a new blade holder and cutting strip just to find that the problem was the blades themselves.