Looks like a pretty nice unit. I am wondering, however, what sets this unit apart from any other fuel pressure regulator currently on the market? Is it just a beefier unit that is capable of higher pressures or is there something special that makes it unique and superior?

It would be nice if the CAD drawing had some labeling to show how it actually works and what makes it superior.

It looks like you know what you are doing, though, and it looks promising.