I'm working on my first smoke...when I seasoned my smoker I got it to almost 500...now that I'm ready to go it's stuck betweek 200-210. I'm smoking brisket and ribs. Is it okay to put them on at this lower temp? Should I add more charcoal from my chimney? I have a vertical offset...I filled the basket a little over half-way with unlit charcoal and put about 1/2 of a chimney of lit coals on top.