Hello Pupjr1.

Thank you for your feedback! Sorry to hear you are not satisfied with the cut of this lawn mower. The cause of the streaking could be the way the user mows, but it also may be the result of some causes that create this problem. Overlapping each pass in the lawn you make with the lawnmower allows the mowing blades to contact each blade of grass and ensures no areas are missed. The overlap need not be very large. Overlapping by only 1 or 2 inches is enough. As you complete a pass and make your turn for the next one, line up the mower’s wheels with the indentation the wheels made during the previous pass.
Another suggestion to take into consideration, a clean mowing deck. Over the course of the mowing season, the underside of the mower’s deck collects dirt, mud, and grass clippings. Even if you mow your grass when it’s dry, the blades still attract some moisture, which tends to make grass clippings clump underneath the deck. This debris hampers both air and grass clipping movement inside the deck. Streaking could be one indication that the deck needs cleaning. With the battery removed or mower unplugged check the underside. Scrape off grass, mud and dirt clinging to the deck by using a wired brush, be careful not to cut your hands on the mower blades.
Lastly, bent blades and those with severe nicks in them also cause streaks. Examine the condition of the blades while you are cleaning the deck. If a blade is bent, replacing it is the best course of action. The same is true if a blade’s cutting edge is badly damaged. Because the blades rotate at high speeds, collisions with rocks and other solid objects are enough to damage the blades beyond the point they can be ground to good mowing condition. The cutting edge of lightly nicked blades or dull blades can be restored by using a bench grinder or getting the blades sharpened by a professional.
Hoping these suggestions help. If you have any follow-up questions or concerns contact us by Live chat on www.greenworkstools.com or call us on 1-888-909-6757 (1-888-90WORKS) for further assistance. We are happy to help.