you guys should just agree to disagree on those rails. I'm sure you both do a good job and seem to be the only two doing it. My rail looked like it came from the factory and I'm sure yours would too Soot.
I don't know that duramax pumps are a problem as mentioned above. A pump is a pump and with the technology in these systems, they all probably work very close to the same. Sure you could spend some more cash and mod the pumps or FCA too but, I really think the fact you have two pumps is enough.
I'm running PPE's and can't say they're a problem....yet. I'm getting plenty of fuel, my pressure is maintained but, some feed pressure tuning may still need to be done.