Back in the 70s or 80s. there was a material out to half sole a frizzen, The NMLA said it gave an undo advantage?
I'm thinking deactivated titanium or something like that?
Is it still available?
The stuff was found NOT to be the ‘best choice’ for putting a sole on a frizzen. Here is something to read. https://www.nmlra.org/news/uraniumfrizzen-bevelbrosDepleted uranium.