Being from MO, here is something to think about. Soybeans provide a draw while they are green then after they dry down (for the beans in late winter) When the soys are turning brown and beginning their drying process how many deer do you see eating them? Probably not many.
Ag beans are bred to make pods and dry down quickly where as forage beans are bred to make forage as long as possible then make pods (I.E. long maturity rates). In some cases because of the maturity dates, the forage beans will die due to frost before they begin putting on pods.
If you are looking for a summer food source then you may want to look at the Eagle forage beans. If you are looking for a food source available to deer later into the winter months then you are probably looking towards the Ag beans. Real World beans are Ag beans with a high torrence against shattering. If purchasing Ag beans from a dealer you need to get the best shatter resistant qualities.
So to answer your question, yes, if you are looking for a summer forage and no if looking into a late season food source unless you have an extended growing season. Just my 2 cents