I have tested out a Hustler super Z 72" deck with a 25 hp kawasaki and really liked it. I mow about 6 acres a week on very hilly ground with a White 60" deck and it takes me about 4 hours! I have looked at scag, gravely and also bobcat. Gravely and Bobcat dealers are farther away from me if I ever had problems. I really want a good mower that will last me many good years. Any help would be appreciated.