Hi Chris,
If there was an icon in the form of a white flag, I would now click on it, I am obviously crossing my wires somewhat here, I am well open to being corrected.
My one memory, which is still confusing me, is how, back in the 60's, we would do ' foreigners ' for mates, in regard m'bike and car parts, I have, on several occasions, stripped the chrome and re-polished parts for what I thought was anodising ( there were some weird and wonderful things going on in those days ) but I generally get most things wrong, so why not this time too ??
I still think that you are doing brilliantly with your work/book and can't wait for the outcome........
Dave.