I had previously thought that power seeding was always better for seed germination. I made a single pass with the aerator on a lawn Sept.29 and then power seeded the same. I just made a return visit and the tufts of grass poking through the aeration holes are very noticeable. The grass coming from the slits from the power seeder are very sparse. Another lawn that I aerated and power seeded it was the opposite effect. I'm thinking it was the type of soil on the first lawn. Which was more clay. As anybody else experienced this?