Recently I've been reading up on as much information as I could find about different woods, and the kinds of tones they produce. However, in some cases, ifferent sources have told me different things. Now I am aware that everyone hears things differently, and as Ken Smith already told me, wood will act in a different way depending on how the instrument is constructed. However, there are just a couple of things I would like to be more clear about. My understanding was that the more dense the wood, the more sustain it will have, and the brighter it will be. Therefore a lighter wood would be warmer. However, I have also read that heavier woods tend to be warmer sounding and lighter woods were brighter. For example, I've heard several descriptions of what swamp ash sounds like. I was wondering what your opinions are on this. (I realize that Ken Smith already answered part of my question). The other question that I'll just throw in is: Are there any advantages in the sound of a bolt-on neck design? I knowe this is also an opinion thing, but I was just curious.