As a homeowner, we're always striving for that professional cut on our lawn. I have a JD LX266 42" that does a good job. However, when ever I have the pro's cut (for vacation), the cut looks much better. Thinking about changing to a 54" walk behind. I've read that the blade speed is up over 18000 rpm's for the walk behinds, which produces a better cut. Hydro cost more, but is easier to handle. Looked at JD, ExMark, Toro and Scag. Any advice from the experts out there? Thanks!!