Ya leave it all together, cut it 1½" thick and call it sirloin steak and delicious!
Reminds me of a man who used to come into my dad's store, about once a month on a Saturday morning. He was from Texas, an oil man, I think from Houston if I remember correctly. I was in my very early 20's (20-21 or so, just married). His last name was Keene and he owned an island in the 1000 Islands area (a couple 3 million $$ or so! Which was about 30 min. from our store in Alexandria Bay-Clayton area). He'd order a flat bone sirloin that was basically the entire flat bone sirloin section off a loin, over 6" thick. Dad would have a deuce of a time separating the backbone from the flatbone. Then one Saturday Dad was playing in a golf tournament and he came in and I had to cut it for him, thought I'd have to use a dang axe to get that backbone off! This was about a 12 lb. steak! I asked him how the heck he cooked it, he just smiled and said, "All day, son.." I now realize he probably did it on a smoker vs. a grill!
Pops §§