Hi dirtman - all 4 racks came with the big block which is the 24 " wide model. Picked it up at Bass Pro Shops in KC last spring for $179.00. I just LOVE IT!
Sumosmoke - I used a combo of apple and hickory.
The tenderloins came out a little dry, but I don't like them anyway and my wife likes her stuff well done, so it will be ok.
I didn't cut into the arm roast yet. I will slice it up tomorrow after work and use the food saver to freeze until hungry again.
The ribs and fatty, however, were just FANTASTIC! IMHO