Before I used my bitcoin private key to claim my bitcoin cash I moved the BTC
to another address (gets a new private key) since the snapshot of the blockchain
used by Bitcoin Cash had the coins on the old private key.
I suggest you use this principle when claiming your Bitcoin Gold as there is no
way you are risking losing your BTC.
100% Agree this is a MUST and the smart way but not everyone is that smart but I do it differently I move ALL my BTC to a temporary disposable wallet before the fork and move it back to my main wallet after this reduces the risk of accidentally having further funds added to any of your previous addresses in the future