Guys, i think it's pretty obvious that not all the European countries are part of the European Community. There are no customs check only for its members.
Therefore UK customs is not going to change and customs check will happen in the following:
Iceland
Norway
Switzerland
Serbia
Montenegro
Croatia
Bosnia-Herzegovina
Macedonia
Albania
Andorra
Belarus
Moldova
Monaco
San Marino
Liechtenstein
Vatican City
Russia
Ukraine
That changes the whole problem indeed... But then, the triangular shipment through EU is somewhat useless, kind of waste of money.