Biz,
Good to hear of your success with a similar set-up. My Velodyne SMS provides 6db/octave of low cut for the mains at 80hz - so I'm filtering the 100s in a similar fashion to the way Ohm filters the Sat 100 model for use with Ohm's own subs. This was the set-up John at Ohm had recommended for a room of my size, but I couldn't accomodate the large footprint of the Ohm subs. Therefore, I subbed in the SPLR subs and off I went!
Marty
BTW - The SMS-1 provides room analysis, PEq, and a very versatile high cut x-over for the subs. The thing is amazing!