Sirloin Tip. Was planning on a pork butt to test a long low and slow but the wife surprised me with a 5lb sirloin tip roast when she went shopping. I'll be watching for Smoke Meister's results on his pork butt this weekend. I just pulled mine off the grill after 5.5 hours at 250. It's a bit windy so I went 250 instead of 225 and I think that was the right choice. It was a simple roast - just salt and pepper. I'm using smokehouse pellets from Sams Club at $15 per 40lbs. It's resting so I have not tasted it yet but the juice on the plate was really good.