WHat is the best way to use those de-thatching machines ( also known as power rakes, I think). I want to re-seed or over-seed too and heard that some do that also. So do they drop the seed under the removed thatch right after raking it or is this a whole other process which u must go around the yard again AFTER raking up the thatch and then put the seed down? It would be nice to be able to kill 2 birds with 1 one stone. I've seen em for $40/day to rent, is this a good price? Are they pretty simple to use or should I practice first. I'm figuring on charging around $250 for 1 customer which has about 1/4 acre with a lot of obstacles and lots of dethatching needed. I'm doing dethatching and over-seeding, is this too much $ or about right? ANd how long should it take on avg. Another question is, what is the best way to collect the thatch? Should I just rake it and put in trash bags manually, go over it with my 21 inch mower with bagger, or suck it up with my blower vac? I have a 36 inch scag but no bag yet and they are expensive. I think the metal grass container is around $200 or more but the bag for it is less I'm sure, but the 36 would be faster than the 21 I'm sure.