Compare the all Vandoren type of reeds, this is still the most cleaner and most beautiful sound for clarinet but...
While from the V12 box or from the 56 box plays lot of reeds, when I open the Blue Box - two or three from ten reeds plays as reeds should play, other 2 plays - but not well, the rest 4 or 5 flying straightly to recycle bin..
This is the reality and no reed adjustment ever can make a good reed from those bad ones.