I think you will find that the compost will 'vanish' quickly. Rick, highly
organic topsoil, combined with adequate liming to bring the soil to a better
pH for grass is usually recommended.

I see your point. Thanks.

No, you might get some fall germination but that grass will be fine until
spring. The snow thing is an old timer's trick: The idea is that the snow
insulates the seed, and the daily freeze/thaw cycles really work the seed
into the soil well, until temps warm in the spring and it germinates. It's
worked well for me in zone 7...

Thanks. This sounds like a very interesting trick.

Jay Chan