Hi! I bought some HF blades but haven't changed my cutter as yet because it has a fairly new blade in it but I discovered something today that I had never had noticed before.
I'm been having trouble with my blades skipping(these were the Olfa brand blades) and I would change them thinking their were the problem but today I happened to use a smaller mat than I normally use and its a new mat almost brand new. That old blade cut fabric like it was butter!
I really believe all the problems I've been having with the skipping and not cutting the fabric is my old cutting mat. I've had it probably twelve years and on occasion I have used a wet/dry sandpaper(600grit almost like Emory Cloth) to smooth out the cut marks. But I think its time to replace the mat. Its not the blades but the mat.