Hanging large traps/panels from ceiling/walls

I've been taking a long look at the construction options for building acoustic panels/bass traps on the forum. I'm planning on building some large panels for the ceiling/wall corners and tri-corners, however I'm not sure of the best way to fasten hooks or mounting hardware to the ceiling and walls without making sure I'm not negatively impacting the construction I've already done. The largest panel would be about 10 feet long by 3 feet wide. That size is approximate. I'm expecting to use 1x4's for the panel frames. For example, I could hang a panel at a 45-degree angle in the wall-ceiling corners and use some eye hooks to hang it from the ceiling. I don't want to just screw the eye hooks into the ceiling drywall though - that just doesn't seem strong enough to me and I'd hate to have the panel accidentally fall. What about using drywall anchors or those "hangers" that spread out two fins on the top side of the drywall in the ceiling? It just doesn't seem like a good idea to drill some large holes into my drywall and potentially create weak points for sound to get through. The same question goes for hanging stuff on the walls. I have two layers of 5/8" drywall on the walls and ceiling, all with a layer of green glue. The ceiling has resilient channel as well. Or would I be better off building some permanent traps directly into the corners using fiberglass insulation, furring strips, and some fabric? e.g. the superchunk method: http://www.johnlsayers.com/phpBB2/viewtopic.php?t=7278 The down side to this method is that there is no space behind the traps... unless I'm missing something. Any thoughts on hanging panels... or alternate design ideas?

This is really a carpentry question but the short answer is.... 8) Find some studs. Or in your case, the RC channel. Otherwise, a large panel like that will not have enough support. If you built the space, you should have a good idea where those studs are. Stud finders don't work too well under two layers of 5/8" but you could try that as well. Good luck! -ashley