I've started to put up the drywall boards in my basement, for those who are pro's, I'm wondering how many drywall screws should I use to keep the ceiling ones up (4x8's, 1/2").
Also, whats the biggest gap I should have between the boards for mudding/taping, obviously the closer the better, but in a few awkward area's I've have some space between the sheets, is 1/2" going to screw the mudding/taping up?