Quoted from PinMonk:Is regraining a customer preference? I never understood why making ball guides look like grained/satin stainless was the goal instead of mirror-polishing them. The mirror polished ones resist ball trails better in my experience and look WAY better, reflecting playfield details like chrome.
Mirror polishing requires about 20x time/dust or more compared to regrain process. For me, one set (ball guides, ramps, inlane stuff, etc) means 3-4 working days.
And for few guys, mirror polish looks too fancy/tawdry (I like it).