Should you correct production mistakes?

Tony Duell wrote: "It depends" (doesn't it always?) I love finding stuff like that when investigating a machine - it's part of the machine's "story", I suppose. On the other hand, the perfectionist in me would likely want to fix it. Maybe the solution is to document your change somehow and fix it, but only if it's possible to back out of the change at a later date - that way you're not harming the "story" but still fixing the fault while the machine is part of your own collection for your own enjoyment. I suppose the magnitude of the problem comes into play, too; for something small like a solder joint that was currently working, I might be tempted just to leave it as-is until it did break properly (which might never happen). cheers Jules