Finally have my rub the way I like it and put it on a 10.5lb butt this morning. This is only my second time cooking a butt, I usually do ribs and chucks. Temp seems to have settled in at 265. Bottom are fully closed top but it's a tad breezy. Hopefully here is a pic of the butt before putting it on. If this works I'll post a pic of the finished product.
Rubbed and Ready
Rubbed and Ready