Warning: Geek alert! I know I'm a geek, so, don't bother reading this thread if you're not also geeky about the engineering of brass instruments. Apparently, it is quite common for the valves on brass instruments (even new ones!) to need alignment. The difference this makes to the play-ability, intonation, and slotting of the instrument is supposed to be quite significant. I've been doing a bit of research on this, and have discovered that it is possible to do a pretty good job at home with only some basic tools, and I wonder if any of you have ever taken this on? If so, what tools did you use? I'll post a piece I found on The Trumpet Herald about how to do a DIY valve alignment in the next posting.