Yes, to a degree. At a certain point a deck can only process so much material. More hp, means more torque. So the blades will not slow down as easily as it is slicing through grass.Just a question that’s been on my mind. Say you had a 21” mower, with 15 hp, could tall grass be mulched well? Does power directly translate into mulching ability? I know a 15hp 21” is stupid but just for discussion.
Couple things.A general eow lawn for me is going to be around 5-6” and cut at 2.5-3”.