Yes I do soil samples for EVERY lawn EVERY year. Many of my jobs are in the same neighborhoods which allows me to be able to customize the programs. I have 9 homes on one street and they all have the same soil results. Also you didn't read closely because if you did you would have read how I apply this to lawns that NEED this fertilizer the same way I have put down 9-23-30 before. Also I don't charge one price for fertilizing someones lawn they get a bid after the soil sample comes back then if its 9-23-30 they pay more but if their sample comes back A-ok then they will get for example 32-3-8. If you want to just be a Show and Go like ChemLawn and use the same products on all lawns then be my guest. I'm almost guessing you didn't go to school because if you did then you would have been taught that you can't give all the lawns the same thing. Also to other people its true DON'T us high P because it can cause water contamination over time. Only use if necessary. Also most of my props are over 1 acre with many being 3 acres which makes it more profitable to do so. Also I should tell you all how I live 30 seconds away from Southwest Landmark and the nearest Lesco is a 45 min drive.