Chris...I've seen other people in this thread talk about 3 1/2 inch holes in the bottom and 8 holes in the top. You might want to try adding a couple more top holes and see what happens.
I'm going to try building one of these myself, which will be a true adventure!
Thanks for the update on your jalapenos, I was kind of wandering how that turned out. I think the 180 degree heat level is perfect!
2 full size webers;
1 smokey joe
1 homemade grill made from an old fuel oil drum
1 ugly drum smoker
Like a bird on a wire, like a drunk in a midnight choir, I have tried in my way to be free.