i'm sure you'll wanna read something on the subject but i'd say, generally, (if your sound panel design works-i have doubts) you'll do best starting directly behind your speakers, assuming you've already removed EVERTHING from between your transducers. go toward the side walls as far as possible, covering the area in the very center first..
Acoustic panels
I made four acoustic panels (29" x 16" each) out of some extra dynamat, and 1/2" MDF. My problem is that I really have no idea where to stick 'em, especially in regards to height. The room is is 11x12x8, and the highs are brighter than bright; three songs and i'm down for the count. I would appreciate any advice, theory, whatever. The speakers are hales rev twos.