In what way is this thing superior to what we have?
It looks to be a real "Rube Goldberg" mechanism with several parts that look to be seriously vulnerable to damage (weak items & totally exposed).
You have to modify your frame to use it.
It requires two cables, not one.
The idea that the shifting is "more sensitive" is balderdash (to me).
Don't get me wrong, I think it is a cool toy.
I am in way convinced to switch nor that it is "better". Please explain.