Seeing Dozuki's "Z" Saw reminds me this dude Franz I used to know always called me "Big Z." I asked him why once, but he pretended he didn't hear the question. I think it's pretty clear now though that there's a new Big Z in town. One with a rigid back, bamboo-wrapped handles, and removable / replaceable high carbon steel blades Dozuki says makes for the smoothest cutting saw you'll ever manhandle. The Big Z is also allegedly the best selling saw in Japan, if Eastern carpentry and construction preferences are your scale's tipping point.
The 21" saw holds a 9-1/2" x 2-3/8" blade. Together they are said to be ideal for precision joinery and other applications requiring highly accurate cuts.