It appears I am reluctantly going into the aeration business. I have been solely spray/fert/consult. Most of my clients are large acreage and sport fields. I find that those few clients who do have aeration equipment, simply do not use it or know how to. Or they may choose to run a crude spiker which does little, if any, to improve the situation. To get the job done right, I guess I am going to purchase an aerator. Factors: 1) capacity capable of sport fields 2) I do run z-sprays and am considering the z-aerator 3) I do like the "function" of cam-driven models, but not sure if their function justifies their price and complexity. 4) clay soils, hybrid bermuda Advice welcome.