Well, if North is the top of the map and south is the bottom, so on and so on. I'm going to say that inside corner south east of your current stands right next to that creek should be hot. It should serve as somewhat of a funnel as well.I know it's tempting to hunt those field edges but if you back of a little bit you will catch more deer before dark. Where you got marked for those huge rubs is a perfect staging area for a buck. My guess is he is bedding close to that creek and then makes he's way towards that field before dark and then "stages up" in that little point until it is completely dark.