Incidentally, when I came to our church, I noticed that one of our lead techs from a few years earlier had configured our system in a way similar to what you’re talking about – the bass and kick drum were submixed to a group that was panned so that those instruments were only being fed through the subwoofers (we run in mono, w/ the center cluster mains on R and the subs on L). To me, it sounded like garbage…the bass guitar had no tone whatsoever, only low end rumble. No life, no string noise, no growl even. Absurd! Same with the kick – no snap, no attack. And all I had to do was turn the pan pot back to center! Made all the difference.