Yep, sounds like wet charcoal if you have to adjust the intakes. They come set for your altitude from what I understand.
I'd personally never leave that alone, I'd be messing with the intakes, but I'd also use good dry briqs, and I'd burn minion method, not the mfg suggested method of just lighting off the whole thing.
Modded Brinkmann Gourmet. Basic UDS. Rescued 22.5" OTS. SJS Mini-WSM. Stubbs. B&B Oak Lump.
Cannondale 2009 F8 (for burning off all the great BBQ)