When you aerate and overseed are you using starter fertilizer or something else? I have always used starter regardless if its an established lawn or a renovation and had good results. I was just doing some reading online and came across a recommendation that if it's already an established lawn to just use a 16-4-8 or 12-4-8 fertilizer when overseeding. I have not heard of that and was wondering if any of you do that or have heard of that. I always thought that anytime you put seed down rather it be a new lawn or just overseeding that you would want it high in phosphorus hence a "starter."