ORRRRRRRRRRRRRRRRRR.. keep an eye to the forecast and see if temps favor dollar spot. recomend proper cultural practices, watering, mowing etc. educate your damn self on the fungus. most of the time you can clean it up with a fert, change in cultural practices and some follow ups. dont be quick to sell a fungucide. IPM and customer service go out the window when you do that. try selling someone a fungicide and dip into hot and humid weather and explain to them in 2 weeks why the product is no longer effective and get a "well why did i spend all that money on a fungicide?" and again, def go with the aeration this fall.