Just installed my new Monark nozzles I received from Sean. All I can sway is WOW. My car was using too much fuel and running like crap. What a difference. Followed the instructions from diesel giant. Take your time and use a torque wrench to re-tighten. No leaks and it has been 2 days since the install. Never took them in to pop test. After cleaning the injector parts with gasoline, I just put them back together in the same order I took them apart. Here is a link to pics of the old nozzles.
http://picasaweb.google.com/michaelrhedrick/OldDieselInjectors

Thanks to Sean and his great customer service!

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1987 300SDL
187,000 miles