Thanks for your confirmation
Now All I have to decide is to either do it Via JFK first or LHR....
I am more inclined to do LHR first as I think there are more things I can do before Christmas in EUR compared to USA.
Generally 25-27 = pretty dead in Europe, therefore it is better to do that first and leave USA later. I mean @ New York everyday is busy and you can always do anything you want 24 hours a day 365 days a year!
Also it will be fun crossing the atlantic during the day ( I alway did the USA-LHR before and never the reverse!)