Anyone ever heard of this? Supposedly you dethatch real good and then right before the first snowfall you broadcast grass seed over existing grass. As the snow melts in the spring the seed is worked down into the dirt and grows. I always thought you had to get the seed into the dirt (slit seeder) or spread some topsoil over the lawn for the seed to get into. Also, if you have all this new seed trying to grow in the spring do you skip the crabgrass preventer then? Thanks for any thoughts, Joel B.