Hi everyone, I have an unopened 5-string set of D'Addario strings. Specifically these: D'Addario EXL170-5 XL Nickel Round Wound 5-String Long Bass Strings I would like to trade them for an unopened 4-string set of bass strings. Or you can buy them from me for $17.50 shipped or best offer. I am selling my 5-string bass and would rather trade these for a 4-string set than waste the B-string by putting them on a 4-string bass. Let me know what you have. Must be brand new unused strings. Thanks!