Bar end shifters are different for sure. I am a vintage racing bike guy so all but one of my bikes are downtube shifting machines. I do have one bike with Campagnolo bar end shifters and the only problem for me is breaking my habit of reaching for the downtube instead of positioning my hand at the end of the bar for “palm down, fingers up” to shift . It only takes a few miles for me to get used to. I still like the bike and it is set up nicely the way it came originally in 1973 so I just adapt. My daughter actually prefers bar ends and has them on her bike. Joe Joesvintageroadbikes.wordpress