Platinum Performance is the best supplement I think you can get on the market today and pretty much covers your bases. If you really want to get him fat and shiny get NaturalGlo, it's rice bran mostly. He's beautiful and those are two more pricey additions to his feed, don't know if that matters, probably about 60 or 70 more dollars a month to his feed, but they do the job right, and that's just a guesstimate. You can always add a little oil otherwise.
Troubled TB ~"A thorn by any other name will prick just as deep." @-'--,---