You got me, Dean.:rotf:

Scott, tubes are allowed according to the 2019 program. Of course, it violates the theme of the shoot. I believe it only took one year for tubes to be outlawed in trophy events at the Southern Side by Side. The 2020 program is on powdercreek.com under "events". Tubes are still allowed except in 16 gauge where an actual 16 gauge gun must be used.