Sounds like a great first try at brisket to me. Follow Bigabyte's advice and you're well on your way. The best part about this "lifestyle" is that you can keep cooking briskets all you want until you're happy. This is what we do.
22.5 OTG, 18.5 SJP (modded), 14.5 SJS, Weber Q 100, TX Longhorn Camper grill TL 21
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"The Great Chicken Sammich Debacle of 2010"