Does anyone know the edge angle of the Para Milly D2 from the factory? I am using it as a carving knife and would like to know the most aggressive angle I can put on D2? My lansky goes down to 17 degrees. Would 17 degrees be OK? I have read that most Spyderco Knives come from the factory at a 15 degree angle. If this is true should I get a sharpmaker?