Well, every cooker gets hotter when opened, the added air will cause the coals to flare up. It's a new cooker, with new quirks. So far, I see nothing wrong, just a little learning curve.
"perhaps...but then again...maybe not..."
careful there son, those ribs are boiling hot...
(='.'=) Here there be bunnies...
Pacific Rim BBQ
Bob's Brew and Que