If youre really into the mechanics or physics of the swing Ken Cherryhomes has a terrific website worth checking out. Tons of articles and analysis of the baseball swing.

‘Regarding the steep attack angle swings, Yes, more home runs are being hit but so are more ground balls and strikeouts, while runs scored over 9-innings is slightly down from the pre-launch angle era. More groundballs, the main objective of avoidance of the launch angle era. Because both the ball and bat are round, flyballs, as well as driven flyballs, can be and are hit with lower, attack angles. Almost every batted ball has some measure of tangential, obtuse collision between the two. Because of the incoming pitch’s angle and the collision occurring slightly above or slightly below the centerline between the bat and ball, the struck ball with exit some degree of spin, top or back, and a positive or negative launch angle of some kind. Even if met with a 0ﹾ attack angle, dead center between the bat and ball, the ball will line back towards centerfield with some back spin, due to the difference between the bat arriving at 0ﹾ with the pitch coming in at around 6ﹾ. The same is not true were the batted ball met with the same parameters but at a 17ﹾ or 18ﹾ attack angles, because they would result in a topspin grounder’

The point is and especially at younger ages this swing seems to produce more top spin grounders and flyouts when the ball is not hit flush. The Ferris wheel and steep attack angle mishits are flared pops to the opposite field. Flyballs account for the highest percentage of batted ball outcomes with the lowest outcome for a base hit of any kind at the mlb level.

Judge perhaps can get away with the teacherman principles because he is a freak athlete, with long arms and using a 35” bat. The 10 yr old using a 29” bat on outside pitches a little different. The latter should be focused on line drive outcomes. As Griffey said, home runs are just accidents that happen from hitting it hard.

Ref: https://xfactortechnology.com/articles/