I do save the parts.
Are you referring to having a long file and chopping it? I’ve never done it any other way, but would be happy to try it out.
I think if you save the part and change parameters then reload the part or go back it reverts to the save state which seems ideal cause you tweak then reload.
I did run into an issue when transitioning to the next bank where everything would be full “on”. I ended up having to sample the master out on a track recorder and crossfading into that while changing banks and setting levels etc then fading out the master loop. So if you have any recommendations I’m all ears.