I am really no one to give advice but here goes anyway. Big sign = big bucks. If you can't do enough low impact looking now wait till after season and walk every possible square foot of the property and see what kind of sign you can find ( large rubs and large scrapes). I like places near water especially a swamp. If no swamps if there is a creek or river find where they cross it will be easy to see. Next big bucks usually like thick nasty cover the kind you probably wouldn't want to go through. Last is food source. I don't really like to hunt directly over a food source because in my area big bucks don't come to fields and other types of food plots etc. until after dark. Look and see where you would want to go to get away from any type of pressure...humans,dogs, etc. Could be very deep or could be a small patch of cover next to a road. No one thing will work for everyone but they must have Food, Water and Cover. No "eye-opening" statements here, just a couple of suggestions.