I just purchased 10 new 64gb Sandisk SD cards from Adorama for an upcoming cruise and DIY land tour in Alaska. What should I do re: incoming inspection on these cards? - Format them in my cameras? (a DJI Osmo Action, a Panasonic Lumix ZS200, a FujiFilm waterproof XP140) - Run speed tests to verify they are the legit fast kind to support 4k video? (I bought them from BH Photo after reading on Wirecutter and hearing on podcasts that many of the Sandisk cards on Amazon are professional fakes - swapped with lower speed memory cards but still bearing the Extreme packaging.) What would you do?