My son committed late last summer when he was about 5'10, maybe 150. He was up to 87 before he committed. His RC was a former pitcher at his school...and was 5'7, 140 when he played so I'm thinking size isn't a real huge thing to him. Son grew 2" over the winter...gained 20 lbs and hit 91 his first game out this spring. He's still a scrawny 6', 170 lb kid...who has never touched a weight in his life....so I'm hoping there's plenty more to come...but I guess we'll see.