It looks as though the ground may start to freeze very soon now... We've had plenty of moisture over the past few weeks so the freezing dirt will definitely get deep pimply surface as it thaws and refreezes from now on... That means that the bare spots in thin turf will have no trouble self-planting grass seed... The seed is perfectly safe in the frozen ground and under the snow for the winter... Sometimes we get lucky in the Spring with heavy freeze/thaw cycles in the Spring after the snow is gone and the seed can also be broadcast then... This year I'm also going with much more annual ryegrass(AR) because if the regular grass fails in non-irrigated forest lawns,,, at least there is something growing to prevent CG... Last year we had one dead zone from the drought that turned into CG becuz the Dormant Seeding didn't catch for some reason, so that will be a prime candidate for lots of AR this winter... Anyone else in the northern climates in which the ground actually freezes for 3 or 4 months, going to give it a try???