I'm not saying its wrong. What I'm trying to point out is that different manufacturers in different parts of the world use different materials. To assume that ALL materials used by various manufacturers are the same is irresponsible. As Mr. Brassel points out, We (Jett Engineering) make our engines "this way" using special materials. Some other manufacturer may use something else so you should follow their instructions or procedures.

If you DON'T KNOW what its made of, how can you assume to know what's best?

I'm not an enginner but I work very closely with several engineers in the manufacture of Weapons Systems for our Armed Forces. When they (Engineers) specify a Material/Process or Tollerance there is a reason for doing so.

They have "Done the Math"...

If I was to assume that they didn't know what they were talking about and said to myself, "Screw it," I'm going to make this bolt carrier for this high powered snipper rifle out of 12L14 because it cuts so much easier then this AERMET 100....It's all metal, what difference will it make" Someone could get hurt or killed.

Its dangerous to disregard any manufactures instructions for any product. Even toy model airplane engines.

If you want to question the manual, Call the number in the manual or send an email and have them clarify the instructions or process. They made the product that your about to use.