First time playing t-ball this spring. Max's coordination is improving. His strength is improving. His running is improving. He's now able to pick up the ball and settle it onto the t-ball perch, using both hands, which he wasn't doing this time last year. He's very, very proud of himself.
I gave up reading the developmental books and newsletters a long time ago. I go by what I see, and what I see is this: Max just keeps on making progress, year after year, on his own timeline.