Sorry to intrude on the debate, but I have a funny story relating to the OP and the uppercut swing.
I am huge on mechanics and sometimes have to fight back from "helping" parents/players with their swing. We had a player (big size) on our team that always made good contact, but she is an upper cut, front foot, hip slide hitter. I was talking to another parent about how awesome she would be with the right mechanics. Next pitch, she sent it out of the park for a grand slam. He just started laughing at me.
I am huge on mechanics and sometimes have to fight back from "helping" parents/players with their swing. We had a player (big size) on our team that always made good contact, but she is an upper cut, front foot, hip slide hitter. I was talking to another parent about how awesome she would be with the right mechanics. Next pitch, she sent it out of the park for a grand slam. He just started laughing at me.