I'm into grade. Night and day. Prime = No. Choice = Yes.
Alot of time and effort involved in my world to do a good brisket. Bigabyte has a killer thread on the subject. But to me, it all starts with the quality of the cut.
I'm sure there are folks here that can make any cut tender but I can not. Choice has the marbling as Bandit says.
Weber WSM, Weber GA, Weber Spirit S-320
Charbroil Oilless Turkey Fryer
Wife LuzziAnn 1956 model.
Maverick ET-732, Superfast LSU Purple Thermapen
The Fun Never Stops at the BBQ Brethren Throwdowns
2013 Throwdown Grand Master. 1/2 of Team Paradise.