Thanks guys for the Bike World links! It was fun re-reading the articles. The one which covered milling the stems set me straight as I have a beautifully reduced- sides as well as top-- Cinelli stem that I picked up years ago, but after seeing what was said about top milling, I had best not install it on the Eisentraut, which is a rider. Stupid light is just plain stupid after all. The stem is a work of art, though.
Ken Wehrenberg, Hermann, MO