The strings on the bass that I have at home is quite old -- I'm not sure how old, but the bass has been with the school for quite a while and there is no record of them ever being changed. The winding (sp?) is spaced unevenly on all the strings (all steel), and it's spaced out where it contacts the bridge. Also on the A string there's a warp near the bridge. However they all sound fine and plays well enough for my (relatively untrained) ears. So should I change them?