Since my successful round of BBB, I'm wanting to smoke up a bunch of it to put in the freezer. Last time, I ended up cutting the 5 lb butterflied butt into two pieces which was fine with me. It took up about 2/3 of the rack if I remember right. Can I smoke 4 of these at one time, one butt on each rack? Or is that too much at one time to allow heat/smoke circulation? I suppose it would be a good idea to rotate them half way thru? Thanks, ya'll!