Now that Mavic 4's are shipping from Amazon, BH and Adorama, will there be any difference from the US versions outside of owning care refresh? I found one that popped up on FB marketplace and the owner said it was purchased from Adorama. Seems strange to buy and sell so quickly, so of course im concerned its a drone from over seas and basically grey market. Ive asked to see the receipt. What are any indicators the drone may be from overseas or used more than a hand full of flights.