2nd rack mod in the mean time? I know I've seen it on this site - basically turning your 590 into a 1070 as far as rack space goes.I did to 6 racks on the 590 but it was really tight. I had to wait a couple hours to re-adjust them and give them some space. If I knew then what I know now I would have went up a step in model. I like to cook big meals but this was my first attempt at a pellet smoker and I wanted to make sure I liked it. Unfortunatel, I LOVE IT, so I will be looking to upgrade when I wear this one out. It’ll be a while.