Blend shapes beyond 100% ?

Hello guys i noticed blend shapes won't strech the model beyond 100, is that unity specific bug or did i export the model wrong? It's really mission critical for me that blend shapes go beyond 100% strengh, thanks in advance.

 

The Unity Blendshape system limits the range from 0 to 100% you can't do any out of range stuff, you can only adjust your original blendshapes in your 3d editor to get the effect you need in the 0 to 100 range, or the only other alternative is to use MegaFiers, it has a complete morphing system and you allows you to use any range on the morphs.