I like Verdict at 7.5 oz burndown for soybeans then come back post with RUP if need be. How heavy of weed pressure do you have? That is your biggest factor.

For corn I like Corvus at 5.2 oz, if you have large weeds you can add a qt of atrazine. Corvus is all about timing though, need to apply before corn is much taller than a couple inches. I try to get it all sprayed before it emerges. It has worked well for us the past couple of years.