White rubber wheels helps some to dull the finish..
Start using diamonds tools on the surface for a more natural finish before glazing which is the norm for me. Top off after glazing with wheels and diamond paste
On crowns you want higher luster, smooth with green stones, emax/zir tools, and or use glaze powder/paste and finish off with diamond paste.
fyi: Don't ever depend strictly using higher glaze temp to control glaze,,,, If you do, you may round, over glaze off your porcelain surface....