I carry a 56" lazer, 48" metro, 36" metro and a 21" craftsman i very rarely use the 21 very rarely. the 36 can get through all of my gates. i use the 21 for ditch lines and extremely steep inclines. i actually have a rope i can clip on to it and i have to sit on the top of the hill and lower the mower down the hill and pull it up over and over and over to mow an area on 1 of my yards. its faster than using the trimmer and easier on the ankles. i was bringing and wearing a pair of football cleats to try and stand on the hill. after about 3-4 good falls with the trimmer i had to figure something else out. where i am its all mountains steep inclines is all we have.