Originally Posted by phillie
The whole point in slice seeding is to get the seed in the soil, hence it being covered. Straw attracts birds and sometimes will germinate and grow with the grass. If you absolutely want to cover it then use organic soil or compost, but again it isnt necessary.
Excellent post :
Just to ad-lib...
Slit-seeding should get you through the dead grass layer, into the soil, and the dead grass layer should help keep your soil moist...