Do you have better luck with clover plots, or cereal grain plots as far as deer usage? Do you plant your clover in October when you do plant?
Normally, I plant my plots mid-August, and use a mixture of Buckwheat, Austrian Winter Peas, Crimson Clover and Wheat. The deer hit the plants in a very predictable pattern. First the Buckwheat until the first frost kills it, then the Austrian Winter Peas, then the clover, and last the cereal grain.
However, this year, because of the drought, I got nothing planted. I eventually just broadcast wheat and crimson a few weeks ago. But I had started plot prep at the normal time mid-August. I mowed and sprayed half of the plots in early to mid-August in preparation of tilling the ground (I planned on planting half the plots early and the other half mid-September to spread out the risk of crop failure). However, we never got enough rain to turn the ground in mid-August. That turned out to be a learning experience, because all of the crimson clover seed heads I had mowed down in late spring germinated once I mowed in August. The picture is of a plot that is pure volunteer clover. I planted none of that. It just came from all the seed that's built up on the surface of the ground from the spring blooms.