Are in such a package with 100 sachets double stickers, one can not be avoided, of course. But I had the impression that the duplicate sticker highly were limited. It was now not so that the stack of doubles was much higher than the extremely who been missing. I noticed that quite a few "Special" and "Stadium" stickers in it were, and when it was almost always the left part of the stadium image. Furthermore, I noticed the extremely large number of players from Ecuador, Colombia and Switzerland in the bags were. Players of the USA, Australia and Nigeria were in there quite a few. All other teams are more or less balanced.
In combination with a well-known Internet portal for Germany-wide exchange of stickers I got my album but almost full. Perhaps I had been lucky just with my package. I think if you do so, the combined, one comes quite quickly to your destination. Otherwise, one can still order from Panini itself;)