In my experience, I try for a keeper track, but I would also record a straight track to experiment with. I've reamped bass parts run back through my bass rig. It was a little odd, but it allowed us to get the sound of the bass really dialed in to fit the mix with the rest of the band. I think we ended up using a mix of the three tracks, the direct signal, the 2 x 10" cab and the 15" cab.