re: How much difference will the flat seam baseball make?

I understand your comparison but to even use a soccer ball to explain a .015" difference on two identical balls isn't an effective one. And for you to say that you're a physicist and act like the difference is going to be as simple as adding 20 feet to every fly ball is a joke. I've been trying to explain that it's not that simple and that people are setting themselves up for disappointment if they expect that to be the case. Baseball is a really, really unpredictable game with so many variables that changing something as small as seam height isn't going to be enough to overcome the dozens of other things that happen during the process of a ball leaving the pitchers hand to hitting the bat to leaving the stadium. Do you disagree with what I just said? Does a .015" difference in seam height make such an impact that it overcomes exit speed, rotation, trajectory, and all of the other major components that go into hitting a home run? If you spent a month writing out a formula for it, I'm just saying that I'd bet my life that the changing the seam height wouldn't change the final distance of more than 10 balls last year into home runs. End of story, you're wearing rose colored glasses if you disagree