Mrs. Deubster gave me a Traeger Lil' Tex pellet grill for Christmas hopefully replacing my old water smoker and offset firebox smoker. So over the weekend I was in Sam's Club (not many choices round here) looking for maybe a tri-tip roast or shoulder clod or something different from my usual briskets or pork shoulder. They didn't have those, but they did have some cuts that made me curious ... would these be any good treated to slow & low smoking, dry or wet, on my 'Lil Tex? Both were Choice grade, in packer trim bags, and I wrote the names down exactly because each name had odd elements:

1) "Beef Round Sirloin Tip Roast", averaged 5 - 8 lbs, looked very lean, sort of wedge shaped, $2.08/lb.
2) "Beef Loin Top Boneless Sirloin Butt, 1/4 trim", these were 8 -12 lb, shaped like a Boston Butt, $2.44/lb.

The words "Round" and "Sirloin" together in #1 threw me off, as did "Loin", "Sirloin", and "Butt" together in #2. I suspect #1 is just a round roast and would be dry and tough no matter what I did to it, but #2 looked interesting.

Any help identifying these mysterious meats?