Here is a pic of us conducting some Spring Deep Tine aerification. We are using .5" solid (no cores) tines set at 4" spacing. We are penetrating roughly 8" into the green profile. I have started to observe a layering at about a 4" depth where our standard aerification stops. Due to budget constraints we haven't done a deep tine in about 4 seasons. Thank you to Berkshire Hills CC for letting us borrow their machine for this purpose. We will also be doing some verti cutting and topdressing this spring. We won't be doing any additional core cultivation this spring. So the greens will remain very playable.