Graduating the back

I didn't do too much today. I started with the graduation of the back. I retraced the contours roughly from the template once more and used the graduation punch to prick to indicated depth + 1-2 mm. I then scraped the surface mostly clean. The thickness region (7 mm) is almost there already. Quite a bit to remove elsewhere still. I don't dare using anything more aggressive than a scraper. But a sharp scraper is amazingly effective, and there is no worry of tear out.