The Phoenix Rod and Gun 2 Gun Action Challenge Match ran a special shotgun match earlier this month. I shot it twice; once with my 870 and once with the 1301 Comp, both with Aimpoints mounted in KE Arms mounts.
2nd Place with the 870
1st Place with the 1301
I found the match to be challenging and practical. I enjoy using shotguns in this format more so than in 3 Gun. The stage designs here made it more beneficial to switch to pistol at different points than the recent Tucson 2GACM shotgun match. Shooter choice and options in problem solving are a good thing.
Unfortunately this match suffered from low attendance; and that combined with bureaucratic difficulties with the host range means that 2GACM of any variety is done at Phoenix Rod and Gun Club for the foreseeable future.