Wow, Michael - thanks for your detailed response!

I'm not sure I could sell that plate - it's so cool! I'd like to keep the machine as it is if I can. I was using it to line with, and had one standard 'tattoo machine rubber band' wrapped twice around the plate to keep the needle in place. The needle goes back and forth almost as wide as the tube opening itself. I've thought about taking a video of it. Doesn't do a lot at the bottom, but I'm not sure that I'd trust it with 3's and delicate lettering. It DOES move a bit, but I don't think I'd notice with a 7 round or larger.

I might try Limey's suggestion of flipping the needle upside down and giving that a go first. Do I still put a bend in the needle if I do that?