I have a question for all you Falcon owners out there. I have yet to try this myself, as it just came to mind, but are all the threading jobs started at the same point? What I mean is, if a bowl is set to full center and marked, and then set on another stem, will it stop at the same center point? So say, I engrave a bowl centered on my stem, will it be centered on yours? Oh crap, hang on, I'll check and be right back.....
Ok, checked 4 bowls and four stems by building the pipes, then put a piece of masking tape over the seams. I made a center mark on them, then took a razor and cut the tape at the seams. Swapping bowl shows that all but the originally marked pair were off, some by as much as a quarter inch.
If someone else could try this and confirm, it would be good to know........