I've only helped load a couple of times. My sil used to pull a pot a couple times a week and I've quizzed him a little about it. The best I can tell, and what my gut tells me, load your heavies in the bottom and keep your cuts full. If they will fit in the front cut and the back cut, then don't spread them out in three. Too much moving around and weight shifting. You will have to use your own judgement on the temps, etc., but keep the cuts full but not extremely crowded, within reason. He usually wound up with about 48,000 on the trailer. 80 six wts or 60 eight wts, as a rule. What I don't remember is if it was 48 or 53', for sure