Ah Jaws ! You can spend more on a few sets of jaws than you spend on the chuck in a very short space of time. I have both the Evolution and the Patriot Chuck, both are superb devices. When I bought the patriot I had an insert supplied with it, It was my first chuck on my first lathe that was given to me by a very kind friend. I soon found that a new lathe (Myford ML8) needed a different insert, then my final lathe (Killinger) needed an excerpt for M33 each was about £20 so no need to purchase a new chuck. The Patriot is really good for small to medium work but the Evolution being a much larger chuck handles the larger work much better. I do find myself now using the patriot less and less but it is very handy having two so that you don't have to dismount a job to work on something else. -- Julian