It only takes a few addtional minutes of additional work. And it's not neccesarilly requests coming from customers. It's the satisfaction I get when I leave of how the stripes define the lawn and gives us an edge over those who don't do it. You take a few pictures of how your lawns look and show a new customer how their lawn looks and then ask them which one they would prefer. Last week we had an overgrown property where the grass was actually long enough that the top of the grass blade was hitting my lower legs while sitting on the z. When we were done mowing this hayfield, the lawn was clump free and was striped beautifully. The next time I saw the customer, they asked how, "how did you do that"? Mission accomplished. I wished I would have had the camera on that one, because it was a record setting high lawn.