Well i did it. Cooked mt 1st butt on my 18 wsm cooker today.I fought with temps for a while,250 was my target but it was 220-270. I pulled it at about 200 degrees & 7 hours later ,let it sit for 30 minutes and it was perfect! Bone slid right out,then i pulled it.I had 7 people over for the UFC fights tonight and everyone was going nuts over it.Did i mention i love my WSM? Thanks to everyone for the help!