every country would send 4 dec/hept-athletes.
all of the dec/hept-athletes would compete in a preliminary round which would determine 1) the best teams of dec/hept-athletes who would then compete again for medals 2) the best 24 all-around dec/hept-athletes who would then compete a possible third time for individual glory and 4) the best 8 people at each of the 10/7 events who would then compete again at those indivudal disciplines.
All of this is to say, I'm not sure we're seeing the best gymnast at each individual apparatus