>>2022017I'm gonna go against the naysayers here; I used the actual suntour ratcheting barcons for years and will probably dig them out for another drop bar in the future. I was on logging roads and stuff for a lot of that and I never found it disruptive to shift on ups, nor sketchy on descents. If you're on the hoods, you just kind of slide your hand across the outside of the hooks, just like if you're changing positions and it's bumpy. No need to "remove" your hand from the bar really, it's pretty secure. Only thing irritating for me is that if you want to mess with them, you're scrapping the bar tape. And they're a little exposed, which feels fragile. Both of those things also apply to STI of course.
Oh, another thing is that they can be spongier than DT shifters for friction since there's a lot more cable housing run. So just try to use actual good stuff for that and not whatever's lying in the bin.