MLB Execs Go to Jupiter to Get More Stupider

Is there a dumber way of determining the home field advantage of a play-in game than a coin flip? Either strength of schedule or head-to-head records would make a lot more sense. However I have a more innovative proposal. I suggest both teams do a water displacement test with their genitals. The 40 man roster with the greatest aggregate volume of manhood would get home field. At least it's a criteria of some sort, instead of dumb luck.