Thanks Mathisk, that's great info. I really _do_ like the look of my original saber, but I'm not so attached to it that I'll let my advancement suffer. However, it looks like if I find a better one, I might be able to pillage the components. I've luckily kept up with the hilt (the one component it's easy to find replacements for), but I think I'm due for a new one.
Good to know, thank you!