I have been using the strings that came stock on the bass, Fender 8250s, and have been fairly happy with them. I play classic rock and have gotten a year out of a set. Usually they sound great by summer with weekly rehearsal and half a year of regular gigs. They seem to take really long to break in and I find that I usually have to dial out some to all of the highs to get the sound I'm looking for. I also boost the mids to cut, and adjust the bass to how boomy the situation is. I tried TI Flats, and they got lost in the band setting, too muddy. I still want to cut through, but want good fundamental lows and growl. I think GHS Pressurewounds sound like they may work. A review said that they sound very consistent from out of the package. Anyone use these on an active Jazz? Are they much stiffer than rounds?