I got the three day demo of the new Wright ZK from Tuesday of this last week until Friday morning of this last week. I had the 52"/31hp. It is an awesome machine! It IS HEAVY. When I would load it in my trailer it would bounce my truck and trailer up/down & front/back! I thought it had a good QOC, but I have talked to a bunch of my customers 1-2 days after I cut their yards with it and they told me "Don't buy that thing!" They say that their yards look much better when I cut them with my other mower (TORO). They told me that the next day their yards looked all uneven, not a flat cut like it should be. I did notice that the lower (about 2.5-3") that I cut, the better it looked. But, with properties that I have that just need to look OK, it would cut those at 14mph (top speed) and the cut looked OK. Overall, if you like standing all day (found out real fast I like my z better) this is a decent machine. It is definitely built well/heavy! It also has a good amount of power. The control levers are alot different also, my hands still hurt from them.
My feet are also still killing me from standing all day.
The mower can turn on a dime though! I managed to spin it sitting in one place really fast & it didn't even in the least bit make me feel like it was going to throw me off. Then I stopped and almost fell off because I was so dizzy! If I was still in my early twenties (full of piss & vinegar) I think I would have liked this mower better. But a z is the way to go for me. I did notice that I could save 5-10 minutes at most of my accounts using this mower, but then after work I was done for. I just wanted to sit & prop my feet up ALL night long. So in that way it WASN'T more productive. Now remember, this is just me & MY opinion. I also don't like the light colors at all for a mower. They look filthy within 10 minutes of mowing! Darker colors can go a couple of weeks before they look bad (and from a few feet away they still look good). Keep in mind guys that they are offering a three day demo on these for basically anyone with a MMZ. DO IT! Try it out for yourself! Even if you are interested in a different Wright mower they can work out a demo with one of those. That's what Kevin Sidebottom told me. That was the rep from Wright that I dealt with.