In my last print using the Quiver, I made a mistake that I'm sure a lot of users would make. I changed the profile to High Detail, but didn't realize I also had to change the profile for extruder 2 (which was still on high speed.) In the past I've made this mistake multiple times when editing nozzle temps, skirt distance, retraction settings, etc.
I think Cura should give a popup confirmation to also change settings for the other nozzle for every change made. Perhaps also giving a warning if the user is using 2 different materials. Alternatively, adding a "nozzle sync" button that would apply the settings of the current nozzle to the other.