Hi well done jdm a very comprehensive walk through. Anone working on the same movement would do well to read this before starting. excellent. As regards the non cleaning of clean parts screws an plastic wheels I can see where you are coming from and respect that opinion, I also see Old Hippy's point of view, being trained old school and very correct its hard to change. But as you say it works for you with no problems so therefore you do it your way. I have done it both ways and had no problems with either. Thanks again for a good and instructive walk through.