I recently swapped out a 5800 FD to an R8000 as I'm running a R7000 chainset with 5800 shifters. I followed the Shimano manual and also ditched the online adjuster and the improvement in shifting and cross chain rubbing was pretty significant.
Maybe I got a dud that actually works properly but I thought it was a really nice design. Same for the R8000 rd, works very nicely.
I recently swapped out a 5800 FD to an R8000 as I'm running a R7000 chainset with 5800 shifters. I followed the Shimano manual and also ditched the online adjuster and the improvement in shifting and cross chain rubbing was pretty significant.
Maybe I got a dud that actually works properly but I thought it was a really nice design. Same for the R8000 rd, works very nicely.