BenchBrush

If true, the 97% Ti / 70% Steel assertion can be proved with a test. Set up with a steel hammer head vs. a Ti hammer head. Drop each to to produce equal energy at the nail head (M x V squared). If the steel head drives the nail 0.70", the Ti head will drive the nail 0.97".

Has anyone seen such a test result?

Until testing is done, this energy transfer claim is marketing BS.

I do not believe that the claims are true.

Your opening statement claims that a titanium hammer transfers 97% of input energy to the nail head, while a steel hammer transfers only 70% to the nail. Those are very precise numbers, which must be backed with independent tests if they are to be believed. Where does the "lost" energy go? Lacking independent validation of energy transfer, the 27% claim is marketing BS. Possibly your complete article will provide proof.

In wine tasting, most panelists greatly prefer the $45 wine to the $15 wine, even when the bottles contain the same wine.

Most nails are steel, should we find a Ti nail source?