When Digs wrote his article back in 2017, the writing was on the wall for Teague lining and it has since been given a decent burial by both the UK and US firms that offered it.
It was a GREAT idea, let down by the conflicts of need for lots more development capital and a very small market.
As Digs says, someone may take up the baton but with steel on the horizon, I doubt it.
If you love your damascus gun, the only option for your unusably thin walls, is sleeve (about 3k), re-barrel in steel(about 10-15k) or re-barrel with old damascus tubes (POA!).
