WOW,,pretty cool & informative thread !!! What's interesting is I bought "into" the "Titanium Advantage" years ago,,(at least 8/10yrs) I installed it and never thought about it,,just figured I had the Ultimate Firing Pin !!! Now whats interesting is I just sold the rifle that had the titanium pin in it and before selling it I went through it pretty good and after stripping it down and looking at the FP,,,the tip was eroded and looked pretty bad !!! I tossed it in my parts box and installed a New GI Pin and went about my business !!! Live & Learn,,,I won't make that mistake again !!!! Thanks for the great info !!