Flying out of Dusseldorf into Ams or CDG and then on long haul business is not only cheaper, it also gives you approx 3750 more level miles. For example I have a Dus - Ams - Hkg - Ams - Dus scheduled in business which gives me 18158 miles - and an extra 4000 for paying with American express fb card. The way it looks now, I'll back to fb plat by May.