Is the difference between competition barbecue compared to backyard barbecue? Absolutely. Despite the impression that certified BBQ judges eat multiple pounds of BBQ and drinking lots of beer between each entry, the reality is very different.
In backyard barbecue, you can relax and smoke meats using any heat source and consume lots of the cooked meat, chasing it down with your favorite beverage. Each as much as you want and make a judgement on how good the food was.
With competition barbecue, there are several elements at play.