I brought home my 22.5" WSM smoker this past Friday, seasoned it yesterday and put on a 5LB pork butt this morning before I went to Church. The temp was 205 F when I left and when I got back a little over 3 hours later it was still at 205! I added 3 slabs of spares on the top grate and as I assumed the temp went down to about 195 F. This is my first smoke and I'm totally thrilled but I don't want to screw it up. I checked the heat source and my wood is gone and all coals are ashed over. I added about 3-4 more small wood chunks. Any suggestions? Dinner is at 7 so I got about 5+ hours until soup.