To me I think there are more factors in party hunting than just birds in the bag. Who pushes, who flanks, who blocks....chances are there are instances where each and all get equal shots. If you walk enough fields in a 3 day hunt, there will be days where some get more shots than some, but I really believe that all will equalize I think some days guys with dogs have the advantage and guys that dont wont....then vice versa. The biggest factor is shots for me.......some guys will get 15 shots in a hunt and get 2 birds....and some guys will get 9 shots in a hunt and get 7 birds.......
I think as long as duties for walking, flanking, blocking are shared and shots fired all equal out...then it is what it is. The only thing to maybe frown upon is the guy that flanks......shoots 6 birds of a 21 bird limit, then when the area shrinks down into a circle and birds get up where other guys can shoot and that same guy still takes the quck shot.......then there is probably cause for a quick chat.