On my trip from Korea to Europe I had a bad experience at the airport. I thought that my luggage allowance was 2 bags of 20kg each, same allowance as long haul flights between Korea and US and Japan/China with Europe. However between Korea and Europe is different and my real luggage allowance was 20kg maximum.
I was checking 44Kg. Overweight fees were 700 EUR.
It was the first time I had that problem so at the beginning I was quite confused. After some minutes, I ran to the freighter company and shipped my backpack directly to Würzburg. I needed to take off lots of weight, throwing to the gargaje lots of old clothes and crappy shirts I bought in Korea and Taiwan. And my running shoes!
I paid 150Won for shipping the backpack (more or less 70EUR) and the hole process took 1 hour and a half. Thanks god I went early to the airport. Shipping was ten times cheaper than Lufthansa. Next time I will not need to decide anything!