Theory about Jac's eating?

Joseph has pointed out that Jac's eating of solid food increased about the same time that we reduced the number of calories per ounce of his formula (we had been mixing it to 24 cal/oz. up from the normal 20 cal/oz.). We had upped the cal/oz. per Dr. K's suggestions to get more calories into him. Hmmm ... We decreased it when he was sick and throwing up a few weeks ago. We have not upped it again and now we won't unless he goes back down in his solid food eating again.