Sharpening a round nose scraper - leaving a bur
I am new to turning and have a sharpening jig.
I have read that a scraper should have a bur on the edge. I assume this bur is on the top, leading edge of the scraper. The top edge is slightly longer than the bottom edge due to the bevel.
In all the sharpening instructions I have seen or read, the tool is placed with the bottom surface on the grinding table and the grinding wheel travels from the top edge to the bottom edge of the tool. Won't this tend to place a bur on the bottom edge instead of the top edge, as it "pulls" material downward? Or is it just the fact that the top edge is sharp? I am confused on this point. Is there any benefit in sharpening a scraper upside down?