For those of us working with very sandy soils, it is important to keep in mind that a Throw-n-Mow solution can help you gradually improve how well things grow on your property, but it doesn't magically increase the amount of silt and clay in your sand. At the end of the day, you can make dramatic improvements in how well your plots grow, but you have to be constantly vigilant about protecting the OM and nutrients you are building up on top of and incorporated into your sandy soil. The gains made are fragile and can be undone much faster than they are improved.
This is why I am always reluctant to spray and only disc (lightly!) under very specific conditions. Once you establish a great layer of thatch on the surface, and you have another standing layer of thatch waiting to be dropped on whatever seed you broadcast next, your results will begin to mirror what is seen in previous posts. Protecting and preserving those results isn't difficult, but it IS absolutely critical. At no point have you magically turned sand into deep alluvial loam. It is vital to understand the changes you are effecting and jealously guard that improved resource. A single application of the plow, or discs/tiller set too deeply, can undo years of effort. The price of good food plots, on throw-n-mow sandy plots, is eternal vigilance! :)