With the advice billfitzmaurice and others, I have started to group my subs ( four 1x15 3015lf vented cabs) together on one side of the room at most gigs. It works well. I've been reading more about boundary loading and have some questions. 1) If I was to vertically stack a pair of subs in a corner, would it be best to point the speaker into the corner? Or, away from the corner. The cab corners would be about 6" from the wall. 2)If using all 4 subs, would I face the front of the cabs together at a right angle and then face that into a corner? Or, face all cabs into the corner with out the right angle? 3)Many clubs that we play at are long rectangles with the band set up at one end. I have been place the subs in front of the band, on one side wall, turned at roughly a 30 degree angle to hit the dance area in front of the band. Is this a good idea? I have been wanting to corner load for awhile but, the corner is usually where the drummer sits and even though he would love to feel the thump of his kick more, I think that it would end up causing major feedback. Thanks for any advice guys.