Hi Sean,
I periodically trade in/out different pieces of my sytem. Sometimes for personal review purposes, other times for experimentation. I can't begin to itterate how valuable it was to be able to play around with the 632 placement.
That said, I currently have:
Two 632s as mains (which I run withOUT a sub if listening to SACD) a 12" sub, 522d-VAC (not the 533. I have to limit my testing pieces to those that are available. The 533 won't stay on the shelf so I'll have to wait until one lands in B-stock. Even then, there's no guarantee that it will stick around long) and two 522d-ss dipole/bipole surrounds. I drive them with an Onkyo SR-702.
So... if I had unlimited resources, a large truck and a slightly deeper room??
(2) 633-T, 533-VAC, (2) 632-LR, (1) 532-LR and (2) 12 subs
Outlaw 1070 receiver or NAD T-773 - I'll let ya'll know what happends here after Christmas. Ahem... HINT HINT