I believe every year you experiment...a little. I buy seeds which grow into plants that I know, in the past, the deer ate to the ground, year-after-year. This year, same plants, no deer. Too many hogs.
Now the hogs are thinned/nocturnal/gone and still no deer. The Iron and Clay peas are growing (the ones the deer love), but there are no deer eating them. Go Figure.
I added Australian Winter Peas...no change in deer activity. I added rye, oats, and wheat...still no change. The fields "look great" and are growing well, but without the deer knowing it is there, well...the season seems real long (AND DRY) from the flat hard bench of the tree stand overlooking lush fields with no deer in them.