We started feeding Protien for the first time in December (heavy), in March we planted the high protien Imperial whitetail spring and summer food plots...........To me it seems the deer look better and have better racks that what we are used to.......

COULD THE PROTIEN/IW MAKE A DIFFERENCE THAT FAST ?

well being that you planted that late in the year and they had access to it through out the winter id say yes. deer need the protine and the mineral to get that boost that they need to grow larger and healtier antlers and bigger boddies.