I am looking to get some hook and look discs for power sanding. Looking at the the Klingspor catalog, the following progression of grits is available: 60, 80, 100, 120, 150, 180, 220, 240, 320, 400, 600, 800, 1000, 1200, 1500. I know that the grit that most people end with is mainly a matter of person preference (often somewhere at or above 600), but is it really necessary to go through all those grits? Which do you choose to skip?
Also, are the premium discs in catalogs like Packards (i.e. the green and purple discs) really worth the extra money?
Once again, thanks for you help
Joel