Mscotrid, Im looking for this quote from a turf guru with a PhD etc. Makes perfect sense to me. I never understood the rob the grass of insulation and a buffer going into winter dormancy ....mode of operation. The fear of snow mold is what everyone seems to believe here. And the low mowing in early Spring [a dry spell in March works best here] when the grass is kept at 3.0+ over the prior winter. In my testing last 2 springs [side by side areas] the low mow does in fact promote a faster green up vs. the power racking and pseudo dethatching drill that most are convinced is needed and pay good money for.