Ive been through stem shifters, downtube shifters (both friction and indexed), and at the moment putting most of my miles on ergo shifters (brifters etc.). Had 5,6,7,8 speeds (currently all 8's). However, my curiosity is steering me into the 11 speed territory and was curious on your opinions on this set-up? Worth it? Not much difference? Im mainly interested in the performance aspect. Is it smoother? Im kind of convinced all Ill ever need is a 2x8 setup as Ive had no problems on tough climbs and long rides, but thats without ever trying anything higher than 8 speed. Im getting ready for another build is why I ask. Thank you.