Originally Posted by
revcp
I just don't understand this comment. Fast and accurate shifting is directly related to component and housing/cable grade and whether it's all adjusted well. One can have quick and accurate shifting on an LHT, and sluggish and imprecise shifting on a $6k road bike. I went with a Troll instead of an LHT because I felt the former was more nimble and versatile, so I understand why some believe the LHT feels a bit sluggish, but claiming that shifting performance is bad is just bizarre.
And how clean and well-lubricated you keep the housings. With 11s clusters, the systems have gotten fussy WRT dirt/water/mud due to the small amounts of cable pull. Di2 just doesn't care. Similarly Di2 has far shorter lever throws (basically mouse clicks), as opposed to mechanical levers that have a ton of dead space before shifting.
Saying in short the shifting "feels sluggish", while uninformative and inarticulate...is one way of putting it.
One can spend the money however one wants...but if you have option Di2 is a nice setup.