Wise words above.
To elaborate a bit on cutting a torpedo, and this is by no means the definitive word, but I like to cut mine at about a 30degree angle about 3/8" up. Test the draw and if you want it a bit more free then cut another 1/4 inch. You can also recut after smoking a bit if it starts to get tight. The reason for cutting at an angle is that you get more surface space exposed.
