It could definitely do a KCBS competition. You just need to practice your timing.
I cooked 3 racks of st louis ribs, 2 trays of chicken (16 pieces), 1 brisket and 2 butts. I did the entire thing on a BWS gator. You can definitely do it on a Stumps XL Baby
2013 Stumps Classic - Delivered 4/15/13
Large BGE - Rescued 2012
2010 WSM 22.5"
2010 Weber genesis gas grill
Rescued 22.5 Weber One-touch gold
BBQ Guru CyberQ
2011 Built UDS - Retired