That metal is 1 point of total failure. Why do that?
Discussion
Then what else? What would you use?
Get yourself a SeedSigner setup, make sure to buy or print out those cards they sell for the Seed Phrase/ SeedQR.
Setup a Multisig for testing purposes.
Test it well, be thorough & ask me for help when you need it.
Once you have this setup you will be able to assess what will work best for you - but if you're always wondering or nervous you'll never do anything.
This first setup is a test wallet to keep around & practice.
I'm gonna have to do that actually. I'll try it with an small amount and get used to it so I get comfortable with multi Sig. Thanks man.
Singlesig advocates always tell you to create a Passphrase, why?
This is because no matter how secure your Seed is there is a chance it can be compromised to a degree. This already gives you multiple secrets to hide separately & hopefully you have your seed words backed up in more than one location/copy.
If you have generational wealth to secure you're better off creating a 3of5.
3 unlocks the wallet, with 2 redundancies.
You store the wallet coordinator file with each seed, as well as storing a few copies on separate USB sticks at home - & in an encrypted email server like protonmail.
So you basically have 5 secrets to hide with a coordinator file to store which you will need.
Obviously this comes with complexity, but storing a shit load of money requires assurances.
As for the device,
If you have a SingleSig setup, why would you keep your private key active on a device with a pin you made up?
That's not secure obviously.