Bip39 Ian Coleman. Have the required variety of COLDCARDs, opt for Import Current all through setup and cargo the same backup file on to each of them. Give Just about every COLDCARD its very own passphrase and after that lock down the seed. Your seed words will not be known https://socialtechnet.com/story5095406/bip39-https-linktr-ee-bip39-bip39-words-an-overview