In those months you really don't need 'food' plots but to build you soil you really need something growing in them.
I would suggest something in this area if you already have plenty of clover plots - my neighbor, Goyt is trying this 'method' this year. Dr. Grant has a number of videos at https://www.growingdeer.tv/ to explain in depth.
That video did a nice job explaining the soil building process and the blends make more sense to me than planting one cover crop in the plot. As a new land owner and food plot guy, my mindset for the summer months is soil health. I'm telling myself, I'm not spending money on feeding deer but money on my soil. If the deer feed, during the summer months, that is a bonus to me. I'm looking at planting Deer Creek Sandy Sure Shot or All Season Wildlife Mix. Leaning more towards the Sure Shot right now.