April 2, 2012
There are three positions as you mentioned; one for travel, one for dethatching, and one for "scarifying" (preparing a lawn for seeding). I suppose you could use the lowest setting for "heavy" dethatching, but you'd really be destroying your lawn instead. It would be quite easy to add a couple more holes in the lift plate for fine tuning your thatch level (low, medium, high, etc).
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