Bat Speed vs. Rotational Acceleration
See how Bat Speed and Rotational Acceleration are different and how they can be compared side-by-side to understand a hitters swing. Hitters can have similar bat speeds but how quick they build up bat speed is very different. For example, 2 cars can both be going 65 MPH on the freeway, but how fast did they accelerate to that speed? How fast they accelerate is Rotational Acceleration.
Connection at Impact vs. Early Connection
See what Connection at Impact and Early Connection are and how they are measured. Connection at Impact measures the relationship between body tilt and vertical bat angle at impact. Early Connection measures the relationship between body tilt and vertical bat angle just after the start of the swing.
On-Plane Efficiency and Attack Angle Relationship
How to use On-Plane Efficiency and Attack Angle together to dial in your swing and see what the differences are. Hitters want to match the angle of the incoming pitch with their barrel (Attack Angle) and have a good swing plane so that they are efficiently moving towards contact. (On-Plane Efficiency)