Because I'm cheap and bass strings aren't. I've never tried this before but alot of bassists swear by doing things like boiling their strings to return some life to them. I've just left an old set to soak in methylated spirits overnight as this seemed like one of the less retarded suggestions and I wasn't in the mood for string stew. Has anyone tried this before and had any success? I can't help but wonder why I'd never heard of this as a guitarist but it seems to be fairly common among bassists. If I can find a recording with the old strings I'll make a before and after comparison tomorrow.