Please don't install extended chokes, they look like sh@@ on a SxS. If you want chokes use the flush mount ones. JMHO. SK/IC will work just fine for most targets. Most of my old SxS's are choked LM/LM and I use them for skeet, 5-stand,trap, and SC's. I have one choked M/F for our Pigeon Ring, Long Bird, or back yardage at trap. That is a beautiful gun with a straight grip. At most I'd jug choke it to IC/LM. Shoot and enjoy it. Skeet and SC guns are the same to me.