Originally Posted by TO11MTM
I tend to look at it the other way. Sora brifters shift similar to Campagnolo. It's a shame that Shimano is holding back everything but Sora. It's too bad that Shimano uses their best engineered brifter on their lowest level group.
Maybe it's a secret Japanese plan to slowly introduce the world to the superior Campagnolo style shifting. They'll start at the bottom and slowly integrate thumb shifters upwards. Eventually there will be thumb shifters on Dura Ace. Or, maybe I'll just stop dreaming of Campy world domination. Seems like Shimano has become the Toyota of the bicycle world.
Tim