There is plenty written on the benefits of aeration but there seem to be a few different schools of thought when it comes to exactly what procedure is used. Core pulling seems to be most popular and there is quite a bit of techincal info on the benefits of pulling a core to aerate. On the other hand there is not much written on the other types of aeration and I would like to know your opinions and experiences with all of them as well as some questions about traditional Plugging. What is the Scientific Goal of the procedure that you use ? Is the "Hook" type of aeration. (JRCO) good or bad in comparison to the standard? Solid tines or hollow spoons? Break the cores or leave them? Pick the cores up? What size cores and how deep is the best? Is "Spiking" beneficial? Is "Slicing" beneficial? Disk mounted coring? Drum mounted coring? How does "Aeravation" compare? Does anyone do WIC (water injected cultivation)? If so what are the pros and cons? What is your first hand experiences with these and whay do they work or don't work? Tell us all about it. Do you notice improvment and is the procedure used a benefit to the lawn? Does one lend itself to other procedures? IE Topdressing after coring or overseeding after aeravating? I want to know why you use the procedure, be honest. Are you doing it because everyone else is, or the predominant procedure in your community is this or do you do it different from most of the others.