I agree things would be simpler without the sub, that is why the Joules are in the process of being built. It sounds pretty good as it is, but I realize it could be better. It is a necessary evil at the moment to really pressurize the room. The Rythmik sub does a very good job at not drawing attention to itself.
I have never heard the acoustic version of Stillborn, I am sure it is awesome. Is that from their live album? I just picked up Catacombs of the black Vatican last week. My initial impression is pretty good. BLS rocks!