i do not know what surrounds your land--but with only 20 acres you will never keep many deer on site 24/7 with the food you are putting out you are getting a lot of neighborhood der coming around-- get in quick this spring or whenever you plant--do your planting and get out, stay out except for very occasional quick trecks onto property also have stands up now during the winter off season. I believe your bucks most likely will always be transcient for the most part so if and when you have one in sights shoot it ! my 2 cents