Let me ask you guys this, why is a rain critical? At this point your 2 greatest threats are over browsing of the soybeans, and weeds overtaking the plot. The seed you broadcast is there. Besides the threat of some turkey scratching, where is the seed going to go? It's gonna germinate either after the next rain, or adequate rain whenever that happens?
I know many lack confidence, and that's understandable.
Give me your concerns. The longer you wait, the greater the threat of weeds. We can play guess the weather any time. With my management you always have an out. In this case, the soybeans are your insurance for the cool season plot and the broadcasted seed is your insurance for the soybeans. It's always good to have insurance when things go bad.