A JE rep responded to an email that I wrote to them. He said if I get the 100mm piston just to get a "touch-hone". I have never had a cylinder Deglazed before either so I am not really sure what machining process they use for that. I do know what a standard hone is, but I have never heard the term "touch-hone". I can only assume it's just a real light hone...??? Anybody got any ideas???