Hey Steve,
You should speak with Mike, "Karmapolice", as he has the Lamm M2.2s with the W/P 7s. I think it would work fine, but he can probably tell you whether he thinks having half the power of the M1.2s would work okay.
(I have the M2.1s with the Revel Studios, and I think I could have gone with the M1.1s or 1.2s very easily myself, as I usually run my preamp at about the 9 or 10 o'clock position.)
Good Luck!