Ok, so I'm not saying this is the only cause, but taken in conjunction with the Rizzo quote about not stealing signs, it would explain why the Cubs players didn't seem to benefit as much as others. I mean there’s literally been studies showing the ball is materially different which would lead it to going further (lower seams, different “pill”, wound tighter, etc). Maybe sign stealing exasperated it like the swing/approach change, launch angle focus, but the ball being different is still the driver. PROBABLY THE SAME SCIENTISTS THAT MADE UP GLOBAL WARMING.