Wow! I just started using the Clean Cut Blades for my Roland GX-24 ... what a difference! Clean, smooth cuts at a much reduced pressure. I'm very pleased!
If you are now getting a clean cut with less pressure, it usually means that your previous blade(s) were not sharp.
I agree that Clean Cut blades are much better than blades from other sources. There is a Roland manufactured blade that cuts as well as the Clean Cut blades do, but it costs much more money than the CC brand.
I keep a small stock of Clean Cut blades, as I have four blade holders, one for each type of material that I cut (sign vinyl, shirt vinyl, twill and sand/paint masking material). They are the only blades that I will use. (Just a personal preference.)