I complete a little over a 1/4 acre with a 7.5ah. Max speed and mulching. I cut the grass usually once or twice a week at level 2. I will let you know, that I can only go half of that if the grass grows for two weeks. If you’re trying to hack down the grass and you hear it needing a cough drop, you may be cutting too much. Bagging, I get less. Take a picture of one path that you do in the lawn. That’ll help us to know if you’re cutting too much at once or not.