From our experience shorter barrels have did great with .675 tubes Indian Creek, .676 Hevi Shot, and .665 Patternmaster.
Longer barrels 28" like a more open choke like Carlson .683 Long beard. But as you know each gun may like a different tube. We have a Rob Roberts choke on its way after we try it I'll tell you how it does.
We are shooting Apex 3.5 shells. Find someone that has some choke and try them it can get costly to buy them all.
Hope this helps