multi signature – Is it secure to make use of a non-public key for an current singlesig pockets as one of many keys for a brand new multisig pockets?

I’m new to {hardware} wallets and self-custody so apologies if I’m mixing issues up or attempting to do one thing flawed right here.

I bought a Blockstream Jade and enjoying round with air-gapped keys and wallets on Nunchuk.

I created a brand new pockets on the Jade and setup a singlesig pockets on Nunchuk with that key, let’s name it Key #1. Did some air-gapped transactions, all good.

I need to setup a 2of2 multisig pockets on Nunchuk now. Can I create only one new pockets/personal key on Jade, name it Key #2, and use the 2 keys I’ve as the 2 keys for the multisig? I’ve two questions right here:

1. Will the singlesig pockets with Key #1 nonetheless work as earlier than and independently?

2. Are there safety points? Each keys are mine and I do not plan to make use of the unique singlesig pockets – it was only for testing.

I might simply create two new keys for the multisig nevertheless it bought me pondering: “Is not a restoration phrase/personal key the identical factor as a pockets?” So should you create n keys for a multisig every of these keys ought to on their very own correspond to separate singlesig wallets along with being keys for the completely separate multisig pockets. Is that right?

I’m new to {hardware} wallets and self-custody so apologies if I’m mixing issues up or attempting to do one thing flawed right here.

I bought a Blockstream Jade and enjoying round with air-gapped keys and wallets on Nunchuk.

I created a brand new pockets on the Jade and setup a singlesig pockets on Nunchuk with that key, let’s name it Key #1. Did some air-gapped transactions, all good.

I need to setup a 2of2 multisig pockets on Nunchuk now. Can I create only one new pockets/personal key on Jade, name it Key #2, and use the 2 keys I’ve as the 2 keys for the multisig? I’ve two questions right here:

1. Will the singlesig pockets with Key #1 nonetheless work as earlier than and independently?

2. Are there safety points? Each keys are mine and I do not plan to make use of the unique singlesig pockets – it was only for testing.

I might simply create two new keys for the multisig nevertheless it bought me pondering: “Is not a restoration phrase/personal key the identical factor as a pockets?” So should you create n keys for a multisig every of these keys ought to on their very own correspond to separate singlesig wallets along with being keys for the completely separate multisig pockets. Is that right?