[yourgrandma]

Oh, that's much simpler. With 24 linaer feet, you'd say I should do the whole front, right? Or was that just a number for an example? Say I went with that amount, would you say it'd be best to stagger them along the side walls to dissipate the flutter, or go straight back from the front, or maybe right in the middle...

Also, is there much difference in effectiveness between ceiling vs wall mounted? It would seem like they'd catch that slapback better on the wall, but you're the lead acoustical designer, and I'm just a gut with a bad sounding room.

Obviously I have much to learn. Sorry to keep pestering you like a little kid. I haven't had much luck finding good info on the specific issues I'm having, so your knowledge is really helping me out.