Have used perma green centri for two full seasons; approx. 500 hours. Think its a tremendous asset for the LCO and couldn't Imagine pushing a spreader anymore on every single lawn. I know there's been hundreds of threads in regards to the perma green but never found any discussions concerning the uniformity/evenness of granular fertilizer. It is my belief that the pattern is heavy on each side and lighter where your tracks are i.e. if you go back to your properties 2-3 weeks after a treatment you will see where you went on lawn by it will be somewhat striped; lighter green where you ran your pattern. This is usually only discernable on weak lawns; 0-2 yrs old, sandy soils, weak CEC soil. Established lawns w/ clay soil and higher CEC's you won't see any striping. I have also used different manufactures of granular ferts and have found some to be more uniform than others. I also overlap each direction back to tires per Perma Green directions and my hopper and paddle are always clean Would welcome feedback on this topic.