The danger you run into trying to increase the temp is that the taste of the smoke from rapidly igniting charcoal can be pretty acrid. So if you are running a minion style cook and you just open the vents or turn the temp up on a controller, this can happen pretty easily, especially with chicken. Chicken can just soak up smoke and it's easy to oversmoke. Adding more already lit charcoal is a stronger option or take the bird off while you raise the temp. I think chicken tastes better smoked at a higher temp. It's easier to get a cleaner smoker flavor vs a smoldering one, and the skin usually turns out better. For the most part, chicken skin just sucks unless you fry it so lowering expectations is important.