i dont think you question make any sense or nobody understood what you trying to do...if you are picking a parlay
each picks is a 50-50 chance lets say you picked home win on a game and you took the under on the same game you might hit one of them and miss the other parlays are parlays
each pick is responsible for the entire parlay ..however with the over and under you skip the chance of the draw not like picking a side...i hope that was a bit of help.