Please don't put extended tubes on it, ugh. While I have some times convinced myself that I needed more choke, more barrel length, more weight etc etc it is often just my shooting that makes the difference. As an example I finally measured the chokes on a 20 ga that I have hit far far targets with. Lo and behold they are .003 and .008
The revers is I have a 12 ga choked .030 and .040 and shot 22 at skeet.
If you believe in the gun and don't overthink it your gun will do fine at SC

This ain't a dress rehearsal , Don't Let the Old Man IN