its counter intuitive.
Most folks are attracted to it because it seems like it would be easier than traditional methods.
But its the opposite. And unless you have and economy of scale, ie, 500 yotes a day to flesh, the accompanying hassles, and long learning curves are not worth it.
Traditional fleshing is fast and easy like a Big Mac.
Power Washer fleshing is like making a cheese burger from scratch, starting with a cow, a bushel of wheat, and a garden.
you ever see cattle trails going across the pastures? They're lazy bastards, you can bet those trails are the most efficient route from point A to point B. That's like traditional knife, and beam fleshing.
You can try to blaze new and improved trails, but you always gravitate back down to the trail that's been there for 1000's of years.