@mrpsync I'm glad my diary of attempts was helpful. I really fumbled a lot in the beginning, but earnestly. You did well buying 12 panels, by the way. That gives you sufficient quantity to actually do some very real experiments, especially, as Lemonhaze points out, using 6" panels. You can really affect bass peaks with that thickness if it's also some distance from the wall.
The other thing I'd add is that you should not get too hung up on building frames for these panels; fabric that is adequately transparent (burlap, muslin, etc.) will protect you and enable you to move things around.
One other helpful hint I got early on was that if you're trying to troubleshoot a ceiling first reflection point and it's a pain to get a pad up there, try one on a spot below on the floor. That should help show some difference without all the ladders, staple guns, and cursing.
The other thing I'd add is that you should not get too hung up on building frames for these panels; fabric that is adequately transparent (burlap, muslin, etc.) will protect you and enable you to move things around.
One other helpful hint I got early on was that if you're trying to troubleshoot a ceiling first reflection point and it's a pain to get a pad up there, try one on a spot below on the floor. That should help show some difference without all the ladders, staple guns, and cursing.