Alright I'm looking for some help with ribs. My buddy has called me out on a rib cook off. He wants to do baby backs, I had some spares in the freezer so I'm going to practice on them. He claims his are perfection and can't be beat (he is a big talker so I'm doubting they can't be beat especially since he has never made them for any of our group). I have spares that I rubbed some of big bob gibsons rub on them and threw them in the fridge. Looking for some sweet & spicy sauces but I need your A games haha. He keeps talking about 2 1/2 down or 3 1/2 down what is that referring too? I have a yoder 640 and plan on using bbq delight maple/ Hic/apple blended pellets using either 3-2-1 or 2-2.5-1. Thanks in advance.