Can anyone give me feedback on a Scag Freedom Z? I am debating on wether or not to buy a 52 in wb or Z. I like the idea of a Z to save wear on my hands and knees ( from velke). Also, the Z is supposed to have greater ground speeds. However, I hear this is an "entry level" commercial grade. Is this a good Z to start with? I'm planning on using it about 20-30 hrs/wk. A Z is much easier on the hands than pistol grip wb right? I've never even demo'd one yet.