I wondering if this tool is difficult for others to use? http://www.chefwarekits.com/robert-...-cutting-tool-woodturning.html?search=Sorby n I'm making a mill out of curly white oak and having a difficult time cutting the groove. Anyone have any tips on using this tool? Thank you. PS I know there are those that don't cut a groove, rather cut off the tangs and glue it in. I'm wondering about using the tool.