I did a similar mix to your dove mix a couple weeks ago, so i hope it is good for you - thus defacto good for me. Though, I haven't used sunn hemp yet.
Last year our mix had : cowpeas, browntop millet, oats, berseem clover, and red clover.
This year, my cousin gave my father a mix that has some soybeans, cowpeas, and lab lab in it; we decided "sure, throw it in" with a similar mix to last year's. Our current mix is: cowpeas, soybeans, lab lab, spring field peas, oats, browntop millet, dove porso millet, and grain sorghum. We did light tilling like was mentioned in the old forum "thirt" thread to make sure the larger seeds had good soil contact. I spread the millets over the top with a hand crank spreader.
My main goal with this mix is to give us biomass for throw and mow in the fall. If it feeds any wildlife along the way, great! Last year, the deer were bedding in our plots, and eating everything except the millet. My father and uncle were getting extra excited about does bedding their fawns in the plots.