Glad you are enjoying the FH3s, I find with the Alpair's they can rock-out way better than my Fostex OBs.
I ended up putting 18" long stabilizers on the front and using 3 of PE's small diameter spikes on each speaker, someone would really have to want to tip one over now.
I also pulled them out from the back wall a little more and will try losing some of the stuffing to see what that does for filling in the speaker's bottom octaves that were lightened with the move. (Maybe a BH Fix is in order!)
I have to amend my earlier post about power requirements. My old Scott is in need of some TLC so I brought my SEX home from work and hooked it up to the FH3s. Granted our condo is small, but unless I planed on throwing a house party, I could live with the set-up.