I'm thinking it's too late already but I have a customer who wants his yard power raked. The new growth has started. The lawn is only 5 years old and he said he's bagged it the whole time. He also hasn't fertilized yet this spring. I looked at the yard and the "thatch" (it isn't really) is mostly dead grass on top. I think if I cut it shorter and bag it, it will look a bunch better. I thought maybe a short cut, an aeration and then some fertilizer will do wonders. He's concerned 'cause his yard isn't as green as the neighbours. I'm just afraid of damaging the roots of the new growth with the power rake. What do you guys think? Thanks in advance for the advice.