Let’s say, hypothetically, you decided to put 250 lineups into a GPP, and you were stacking. You’re going to stack 4 batters from one team, and mix up the other 4 batters. Would it be a higher EV strategy to stack the same team for all 250 lineups? Or would it be better to stack one team for 125 lineups and one team for the other 125? Or 50 lineups for 5 different teams etc.? My guess is that there comes a point where the law of diminishing returns kicks in, where adding an additional stacked lineup for one team does not increase the probability of winning the GPP enough to justify the entry fee for that additional lineup. I guess ultimately the question is “at what number of stacked lineups for one team is your EV maximized, and whether or not this number is greater than 250 which is usually the maximum amount of lineups allowed.” If it is higher than 250, then obviously the optimal play would be to stack one team for all 250 lineups.
I know a huge factor to play a part in this is game and slate dependent, but let’s ignore ownership and batter prices and just pretend stack A has a slightly higher chance of going off for 10 runs than stack B, which in turn has a slightly higher chance of going off than stack C, and so on.