I treat mostly fescue and bermuda. I have found that fescue loves just about any type of fertilizer you put on it. Bermuda seems to be a different story. I guess weather is a big factor as drought and heat can take its toll. Last year I applied a 25-0-5 Mesa Lebanon product and this year my dealer had a "special" on a 28-2-3 Urea from Reed and perrimman. This years bermuda wasn't as green as last year. For you experts do different types of turf like and respond better to different forms of N?