More questions to this:
2. Before funding a paper wallet, import the address (not the private key!) into Bitcoin Core:
importaddress 1addy PaperWallet1addy false
The "false" prevents a rescan. If you fund the paper wallet after this, it shows up as Watch-only and the balance is nicely updated. Since Bitcoin Core now knows your balance, you can later import the private key without a rescan.
You emphasize the
before, importing an address cannot be done
after funding the paper wallet?
And if I hold private keys with some UTXOs at the corresponding address in the bitcoin-qt wallet and one or several watch-only addresses as well and this is all intermingled together to a single balance, how can I differentiate what values are spendable from the bitcoin-qt wallet and what belongs to the paper wallets?
Thx!