Only few times I have cut the grass with this mower and haven't really put it threw any hard work with long grass. But as you see with my post it works well extra Revs cut in from flaps. When grass little longer thicker then backs down to your Rev you set at. Just like throttle . there's plenty of adjustment in mower Base. And flaps to cater for conditions of length of lawn Ya it's a cool pice of Machinery . Throttle start stop. Can use to hold revs high or low you adjust to conditions Long as your Carfull ,great fun to use
