In my classic rock band we have bass, drums, guitar & keys. The keys player only plays what is on the recording on those songs which had keys, and then just adds in what is needed more as a rhythm instrument on those which didn’t. At the last rehearsal I tried my Sansamp and it wasn’t a success, the sound of the band was much better with just my steel rounds strung Precision into the studios Ampeg stack, lows dropped a bit for the room, highs boosted for a bit of clarity. I suppose it makes for a more supporting sound, but with potentially two lead instruments I figure that’s what I should be doing (tho Zep, Purple & Rainbow basslines aren’t simple plodders but any means).