I have yet to find anything the Ego mower won't go through. When I went on vacation for 10 days in July, I mowed a few days before I left, and didn't mow for a few days after I got home. It was 16 days between mows in July. The grass was tall, and the Ego ate it all.Ego mower is impressive. I should have trusted my gut instinct before and went that route. Damn skinflint part of me strikes again...