As for the polishing & etc., that enters into face-to-face demonstration territory. Dealing with matching levels & etc. is much of the reason why few people choose stem replacement and repair work. It's a pig bitch, and requires all sorts of adaptive, tricky techniques to do consistently and well. Trying to explain them in writing, though, would take hours. I'd end up having to write what amounted to an illustrated manual because of the many questions that a brief explanation would trigger.
If you ever come to the US, I'll be glad to show you, though.
