On a scale of 0 to 100: 0 = Zero Cut 100 = Full Cut Professional Regular: 22 -> 1-stage polishing possible Professional Medium: 30 -> 1-stage polishing possible Professional Strong: 51 -> 2-stage polishing necessary, as the cut begins at 55 and therefore cannot achieve the finish cut. *The longer you work with the polish and the initial cut, the finer and deeper the cut will be afterward. The professional version of Regular (instead of the hand polish) is a completely different product for machine polishers: It is a nano-polish and the softest of the 3 professional polishes (Regular, Medium, Strong)