Thinking of looking into a BX for a replacement for a Grasshopper mower. We are cutting back on our mowing and the Grasshopper is on its last legs. One of the things we hate most about the Grasshopper is your supposed to grease it every ten hours and it has about a dozen zerks,some are hard to reach. How many zerks does a BX with the 60" mower have and are they hard to reach? How often do you have to grease? Thanks!