I don't think Homer Kelley would agree that it is important to have massive forearms . . . even if you are a Hitter. He said he was a Hitting Devote . . . Look at him! He sort of looked like Mr. Magoo and Mr. Rogers had a baby . . . not a very intimdating physical presence exactly.
Stong Alignments and a Strong Computer he had . . . doubt he was much of an arm wrassler though.
Eddie Merrins book "Swing the Handle" was all about using both forearms to swing the club. It was definitely a four barrel swinging pattern....remember 6-B-2, the muscles of both forearms are available to actuate that assembly."