I think having two separate cards provides better options as well for keeping them in distinct separate physical locations. One thing I’ve done in the past is got two signing devices and made them clones of one another. They are the same device for all intents and purposes but can be miles apart physically. I can smash one with a hammer and it doesn’t even matter. And keeping metal stamped copies of the seed phrase pieces in two other locations is a good idea. Josh and Dan’s latest episode of Blue Collar Bitcoin podcast with Ben from Sessions has some great insights on multisig and also on UTXO management across multiple devices.