Daniel-san thank you so much for taking the time to respond all these questions.
I will take your advice and stay on that route. I'd prefer to stay in Yokohama after my arrival to Narita. dont know how long it will take to clear customs.
Getting to Yokohama should be fine the arriving at 4:00 pm then right? If Im understanding Hyperdia right, the schedule shows quite a few trips after 6 PM. Could you confirm Daniel-san?
Also my travels are from Dec 25th to Jan 1, is it hard to get seats on the Shinkansen during those times?, should I get the green pass instead?
My eternal gratitude for your help Daniel-san.