some will say its to late being close to opening day my opion try it ,i have seen deer come up to a feeder when the feeder was just put out not even 2 hours before, as far as the feed try shelled corn ,a friend of mine uses a alfha molasses pellet and will mix it with shelled corn. and on the tree problem , if there isn't a tree that is suitable try a ground blind i myself have shot more deer from aground blind than a tree stand. remember hunting is like a classroom you won't know until you try. good luck