Congrats on the bull did you hunt with Joe for that bull? I know he was hunting with a fellow who tagged a Selkirk bull as well. As for the stove I have the same one for my 12x20 alaknak tent it works great if you stoke it down it will burn about 3 hrs when crammed with logs. As for the stack try some sheetmetal screws in each section, or some of that foil tape. We hunt in a very windy area, and we had issues with the stack until I used the screws now I dont worry about it at all.