Nice butt, Bruno
As far as the WSM capacity, you'd be amazed at what you can fit in there. I've cooked 8 slabs of ribs (four on each grate, using a rib rack, and you may be able to do more if you roll them. Also, there are pictures on the virtual weber bullet site of 6-8lb butts in a WSM. The guy made a teepee out of three butts leaning on each other on each shelf.
"Ron Rico, Boss. You can call me Captain Ron..."
The Naked Fatty!
Coming soon! Chicago Area Mid Winter Lunch!
Southern Q Limo Elite Gravity Fed/FEC-100/Memphis Pro SS/PBC/LBGE X 2/SBGE/Mini BGE/Nomad Pellet-matic/Good-One Model 42/WSM X 2/Cookshack Smokette 008/Weber Performer/Saber Cast 500/Weber Kettle X 2/Weber Smokey Joe/WGA/UDS/Coffee Roasting Gasser