I feel I adequately laid it out once already but apparently you don't get it.
He is one person nobody has heard of selling an untested product outside of his own engine with claims of being guaranteed to 1000hp. As said before the last guy that said that failed miserably. He has given no name, no company name, no info about where he actually is working out of, no pictures of his vehicle or build or engine with the rods in it. Nothing. Just words in a forum and some suspect googled pics others have found. He may as well be a Kenyan scammer.
Jeff is not just a guy on a forum but a moderator no less with dozens of people backing up his legitimacy and reputation and has been in the game for years. If he were to F him on the deal if the rods held up and he doesn't pay I'll chip in to pay the guy back myself just to save some face for the sake of the forum, Pat, Kat and Rob. But I know this won't happen.
Like others have said new untested CRITICAL engine parts usually get divied up between a few different groups to be tested and proven. Usually the supplier doesn’t get a dime for any of it and does this well before offering the product for sale to the public in hopes they work as advertised and the said groups buy a pile of them. That's where they recoup the costs. It's called r&d. R&D always costs money up front.
To NOT expect to have to give a set or two away of a component like this to prove them, get the name out there, and promote them is ridiculous.
And Jeff isn't even asking for a free set, he's actually offering the guy free independent testing with FULL payment upon proof of guarantee. Jeff takes a way higher risk on this deal.