My yard is 3 acres of mostly bermuda. I am now going to start mowing my parents yard that is 5 acres of bermuda & bahaia. I currently have a Husq iz4819, 48" 19hp Kawi. This mower works really well in thick well watered bermuda where I have an arobic system, but in dry thin tall stalk grass it will leave a loy of stringers. I am looking for a good quality 60" ztr. avalible in my area is Husqvarna, Ferris, Kubota, Exmark, Hustler, John Deere, & Scag. My biggest cocern is TIME. I want a mower that will leave a clean cut at the fastest speed. Thank You for the help.