I was reading in a magazine an interview with anthony jackson and he was explaining his theory on Scale length, string tension and all the stuff to consider when custom ordering. Here's an excerpt from "String spacing and neck width" "Some believe that on a 5- and 6-string basses tight spacing is easier to play. In the long run it really isn't. If you consider proper technique--which means keeping the thumb behind the fingerboard, instead of over the neck edge--you'll see that my instrument's neck could be even wider, yet i could still reach the strings. That said, however wide your fingerboard is, spread your strings out as much as you can if your bridge allows it. Not being cramped reduces fatigue..." I'm having a hard time wrapping my head around the cramped aspect. To me, stretching between all the strings puts the muscles in a more tense position and I try to stay as relaxed as possible when playing particularly for longer sets. I'm recently looking/talking with getting a customer made ERB for me. Lots of fun here but one of the questions that bugs me is the string spacing. Everytime I move down in spacing (21->19->currently 16.5) I have loved it. Took getting used to at first but then i love it. I was thinking 15 with no looking back before I read this article. Now i'm trying to understand the comments but they don't seem right for me. Anyone have comments on strings spacing ("I can't slap on them" comments aside), wouldn't it seem logical that the smaller spacing allows your hand to be more relaxed than having them stretch? When i think of the larger spacing I think about how it's more difficult to solo in higher registers on the lower strings when doing runs or hold chords with bigger spacing.... hands always seem to catch a cramp if i'm doing a lot of chordal work with a larger spaced instrument. What do you guys think?