Well plan A, now plan f,g,h,,,z is done and the defiant is now a chunk of heated thermal mass taking up space in the basement of our new house. The sierra 007 is now crankin' out 725 stovetop and 380 stack, 50 and 60 better than the vcd's best for me and I havent got the cats for it yet... just its baffle, yee haaa! Sorry I dont have pics of the install yet maybe tomorrow. God I love boiler plate compared to cast, thats why it came with me. It only took about 30 min to break in the new pipe. My wife and I both think they might use vege. oil now on pipes since it smelled like a hot skillet and not like burning tires , anybody else notice a difference from a few years back? Also it seems to be perfectly happy going straight to 8" with a 6"-8" adapter and a 8x12 cold tile chimney. The only puff I got was Cause I didn't flip the bypass and opened the door right up about 20 minutes in.