I put a Redshift suspension stem and a flat topped carbon aero bar onto my upright. The bar is pretty flexible compared to any round bar that I have owned and the elastomers in the stem definitely move when I hit a bump. The combo is a huge improvement for me. Another surprising comfort factor is how the brake hoods transition to the handlebars, there is a nice flat area where the pad of my palm can rest. The nerves in my hands in the words of the Doc who did my last EMG study, "the nerves in your hands are shot"......they must hurt. I do not even wear gloves with this setup, bizarre. The only downside are funny looks I get because the combo isn't rando.