Does Flight Control work as well at a half gallon/acre as at a gallon/acre. The label says half gallon can be used. I talked to the company and they are highly recommending a full gallon/acre. That ups the cost considerably. Has anybody experimented with rates. Also does reducing spray volume to 10, 20, or 30 gals/acre reduce effectiveness. The company rep also said not to spray with dew on the grass. Anybody have expereince with that?