
If he is the right weight, not too fat (Should be able to feel his ribs ) and not too thin, fit and active then you seem to have it just right. Feed by eye and not by quantity, if he is too thin then a little more if too fat then a little less. Sounds like you are doing fine as you are. If you feed to his idea of how much (As he is a Lab!!) he will be as fat as butter...LOL