I'll expand a bit on what you say in your first sentence. I think the game would be improved with more batted balls put in play, fewer walks, fewer home runs, and fewer strikeouts. The two changes mentioned here would most likely accomplish three of those four objectives, but IMHO the walk rate may actually rise. A pitch delivered from a lower mound will be easier to hit so I think pitchers will be more likely to nibble, especially with runners on base, and give up more walks as a result. I think the solution would be to increase the size of the strike zone along with the two changes you mention. Implementing this would be a tricky process that may require a few years to fine tune. At the risk of appearing to channel Bert Blyleven, we would have to find the balance point of the three variables. The strike zone has to be enlarged enough to keep the number of walks in check, but not by so much that the number of strikeouts gets too high. The mound has to be lowered enough to control the number of strikeouts, but not by so much that the number of batted balls gets too high. The ball has to be deadened enough to control the number of home runs, but not by so much that it causes a new dead ball era. And by the way, fewer walks and fewer strikeouts means fewer pitches and a faster pace of play. I also want to say that I apologize for contributing to the divergence of this tangent from the narrow topic of the thread, but in baseball it all ties together. The changes discussed here would affect how batters approach pitchers and defenses, which in turn affects how pitchers and defenses approach batters. Edit: I see ash replied to my post as originally posted. This version was being edited while he replied.