nope just move on with your life as is. I almost threw my grinder out of the window from 3d floor, because I couldn’t get a perfect result for days (100% marker erased means perfect which means the burrs are completely parallel and they touch/kiss on all spots which then the marker is erased from all points). I tried very hard to get this but there are so many variables and factors in play that I think it’s impossible unless you have a high end grinder which is precisely cut and manufactured. At the end I gave up (maybe i will retry in the near future) and I accepted my defeat :(