i asked a question about plugs in a prior thread, but thought i would get more opinions. the process of aerating is new to me, im trying to completely educate myself so i can offer the service. is it true that you just leave the plugs on the lawn??? i always thought you had to rake them up, rendering the service tiring and unprofitable. but i was told you leave them on the lawn, is this true? I understand the benefits, but doesn't it make the lawn look herendous? how long before the plugs disipate back into the lawn? how long before the lawn starts to take a turn for the better, look-wise?