Awesome info! One of the most enjoyable threads I have ever read here. Thanks for sharing.
CLFR just referred to them as "Silver"..but there are some entries for "Silver #2" or "Silver II". Broken Truss Rod theorized it may explain some of the slight color differences in the silvers.
I have logged 153 silver basses that were built between 1976-1978 (call it the B00 period). That does not include ones that may have had colors changed in repair to silver. A quick look and I see none that had been changed to another color. One of the dilemmas I have with this project is how I have info compiled. Right now it is the original color and build info with changes noted in another generic field. The changes can range from a simple setup to a whole new instrument built around a neckplate.
Due to that, it is hard to compile an absolutely accurate count of things like colors.
I see their production peppered through. They did seem to be made in small runs, like 6-12 silver basses and guitars run through the paint booth at one time. Remember, these were done side by side with guitars. But that is how they ALL were done. They did batches of colors to fill Music man's orders. There are many days where they will do 40 basses, all the same color. Then another color the next day. Very, very few one off colors were ordered and built. Usually it was for someone special or for promotion. 99% of the instruments built in this era were bulk ordered in a monthly production schedule that ordered hundreds at a time and broke down particular color quantities Music Man wanted. CLFR would then fill the order. Sometimes when CLFR fell behind they would be working off multiple orders. One daily invoice could sometimes have instruments filling 3 bulk orders. They would list which were for what. That is another item I have started incorporating into the database.