I'm a groundskeeper at a private school in Denver, CO. During the school year (we start end of August this year) our athletic field (aside from being used for after school sports and throughout the day PE classes) is also used for recess and open periods so it gets a lot of traffic. I'm restricted from core aeration during the school year because the smaller kids throw the plugs at each other and track mud inside, so other than winter break my only opportunity to get good core aeration is during the summer. I do slice aerate when possible but have doubts about the effectiveness with such high traffic. I always core aerate immediately following the summer sports camp (mid-June) but am wondering if I should aerate again first part of August. Any thoughts?