How Could Luke Weaver Reduce His Fly Ball Rate?

As it happened, Jack Sommers’ comment ignited my curiosity.

“...the BIGGEST key for Weaver in 2021 is to reduce his FB rate, which skyrocketed in 2020. ...Perhaps an improved cutter, or maybe just better command...” — Jack Sommers.

Jack Sommers

My questions were, “How could Luke Weaver reduce his fly ball rate,” and “How much improvement could he expect?” Let’s look at those questions.

How could Luke Weaver reduce his fly ball rate?

Reduce Spin Rate. One way to reduce his fly ball rate could be to reduce the spin rate on his 4-seam fastball (Source).