Well I have seen through my many million lineal foot of lumber that I have moulded, it does not matter If you are using Carbide,tungsten carbide, Diamond, High Speed steel, wood peeling knives, veneer knives, slicing knives, slitter knives etc. I have milled so many types of figured maple,figured cherry, koa, jatoba, figured mahogany, figured walnut, rosewood, figured rosewood, bubinga, ebony, zebrawood, figured and standard jarrah...and the list goes on. anyways no matter what we have done there IS always a profiled piece in the run that has tear out or blow out keep in mind that these are fresh sharpened knives. I run them at 33 Foot per min at roughly at around 4000 to 5000 rpm. now the flat stock We will only SAND to thickness only because we all know what happens when you S4S a board / glue-up and you get a blow out/ tear out in figured lumber IT STINKS and gets expensive. but anyways rough sanding Flat stock then finish sanding the flat stock it the way that I have seen to go. but for the profiles you are likely to have at least one tear out somewhere.