I have a major jazz concert in three weeks, but it's been forever since I've last changed my strings. My standard practice has been to change the strings exactly one week before the concert, as I am the only one who hears my bass otherwise. My strings sound absolutely terrible, I've already gone through two replacement G's with this one set (one I bought yesterday). I have one unopened package of lo-riders on my desk. Should I wait another two weeks and keep on this crappy sounding set until I change the strings, buy another set and change the strings a week before the concert, or change the set now and not worry about buying another set?