Bitcoin Gold is supposed to have strong replay protection, so I see no problem moving and using your BTC post gold fork. To claim your Bitcoin Gold, you may still need to wait a while longer until you have a trusted walet that supports Bitcoin Gold, then follow instructions given for that wallet. Essentially, if you had your coins in a ledger wallet at the time of the snap shot, you should be just fine moving your BTC. However, I would make sure your BTC all stays put in your ledger wallet after the Nov. 18th fork, and not move or spend it until we know what is going on. That is because there will not be replay protection, and there is plenty of unknowns with regards to which surviving blockchain will ultimately be BTC.