I have a few bags of Royal Oak Charcoal Pellets I got for $2.00 a bag on a close out at Walmart. I tried them in my camp chef without a PID controller about a year ago.
Really didn't notice a lot of difference, but I did notice a much greater swing on the temperature.
The flavor profile had just a hint of the charcoal smoke flavor.
My controller seems to be getting flaky after about 200+ cooks by running a lot hotter than the set temperature.
So, when Amazon had their super sale earlier this month, I picked up a CC gen 2 PID controller for $50.
The same exact one CC sells for $150. I'll try the Royal Oak again when I get it installed.