We will be moving into our new house in the next month! YEAH!! It has been a long 9 months. I will finally be able to get working on the theater room. What do people typically fasten the supports of their soffits to? My room was constructed using staggard studs, 2 layers of dry wall and whisper clips with the aluminum channel. Should I be fastening the 2x2's into the metal channel? If so what screws should I use?