I've never seen one used, but that doesn't mean you can't or folks don't. Just watch the part in Rule 6 about not deep frying. If you add any oil, or even oil from the chicken fat, it may come out like fried chicken and you could run the risk of a DQ. It sounds interesting though.
6. Parboiling and/or deep-frying competition meat is not
Just Smokin' Around Competition BBQ Team
BWS Fatboy, BWS Competitor
Medium BGE, Weber Kettle and gasser, other toys