That looks like a nice rig!
Are those dampers in the middle of your smoker stack? I would think they were a must to even out the left and right temps in the two chambers.
Learning generally boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some just have to pee on the electric fence.
Whether you think that you can, or that you can't, you are usually right. Henry Ford