It's been a year! I wanted to let anyone who has followed or helped me with my questions to know what I've done to the smoker since; it's pretty simple. I bought a 3' double walled chimney pipe from Ace. It's a 4" diameter pipe, so I got a 3" x 4" coned adapter that snug/gravity fits into my original smoke stack. I put a 4" chimney flue in toward the bottom so I could reach it. I have to pull the chimney to remove the top pf the smoker, but the extra draft is the key to maintaining some good heat. Last year's turkey was great, St. Patrick's day corned beef was great, the Oktoberfest pork loin was great! I can't wait for this year's turkey.
I love the Royal Oak with some applewood chunks and the Ivation dual probe wireless thermometer. Thanks for the quality recommendations on this forum!