Wow, the Stone Church! I used to play there regularly in the 90s and it sure looks different now!
I have a Sunn 200S cabinet with two K140s and it feels like it lacks lows to me up on the stage (an early Bag End II with a K140 gets a lot more low end) but out front past about 15-20', the low end develops nicely. But, I'm using two BA12-3s and it's a lot more punchy on stage and easier to carry. It definitely provides good low end. I don't know how that compares to the 212T, but it might be a step in the right direction.
My experience is, though, that the less low end you throw into the room, the more FOH turns up the bass in the mix and they have way more low end on tap than we ever will. Unless we get a Meyer based rig or something like that....