O.K. So weather permitting I would like to do the following to my yard this year: 1.spray trimac clasic; I'm told the best time to apply is just after the first frost. 2. Aerate; if we ever get enough rain to soften the ground. 3. over-seed...??? if I can't aerate am I wasting my time and $$$, also how much seed do I drop on the yard??? It is an established yard just not as full as I would like to see it. 4. How far apart does the trimac / over-seeding need to be??? and lastly 5.how long to wait after over seeding to put on winterizer??? Thanks a bunch for any advice you can give me!!