I am thinking about buying a sram red group. Coming from Shimano, I have felt that the differences in shifting between 105, Ultegra, and Dura Ace were pretty small. However, the one place I notice a difference is in shifting under load, when I am standing and trying to make it up a steep hill. My 105 is very clunky in that situation, whereas my ultegra and dura ace groups shift smoothly. I was wondering how Red performs in that situation.

My guess is that I will be very happy with its shifting under “normal” conditions, even if it is “positive.”

Thanks for any insights!