Simple treatment idea for live room- your thoughts please

[transcendentalist]

Hi guys,

Just wanted to run a treatment idea by you that I had for recording acoustic and electric guitars/vox, so as to be fairly sure I won't be wasting my time, effort, and money by doing this.

The plan is simply to build two large panels (4'x6'x4", filled with Rockboard 40) and a ceiling cloud (also using Rockboard 40 and 4" depth). One of the large panels will be setup to my right while tracking, the other one just behind me (with the cloud above, obviously). The room I am going to be using is fairly large (about 20'x30' I think) and has a wooden floor. This way I figure I can retain some of the room's character while controlling it enough that it doesn't become burdensome in a mix by ensuring that no untreated surfaces face one another.

Also, the treatment will not be permanent. The panels will only be set up for tracking (so I guess it's more of a gobo type thing then, right?).

Oh, and one other thing- it occurred to me that it would be nice if possible to save money on the rockboard and only use it to a depth of 2" if that would provide enough treatment across the spectrum for guitar and vocals, and if in case 2" would indeed work fine for this application, would Rockboard 60 be a better option than 40? Or will I get much better treatment if I just stick to the original plan of using a 4" depth?