The main thing you can provide for your bucks to become trophy size is TIME. That means passing all young bucks, unless there is a positive abnormal rack trait. Shoot the does. Plant clovers, soybeans and other high nutrition feeds with something available year round.. I'm not real crazy about the supplemental sack feeding. It will probably help some, but I think to get a lot of value out of it you would have to have a 1,000 acre or so pen. Bucks can have a lot of range and the occasional bite or two of feed won't help much. Another thing about supplemental feeding is that it is hard to get wild deer to eat a lot of the stuff.