Originally Posted by CamelBiscuit
Quick shifter is great but unless you are full blown trying to shave milliseconds on your lap times it is not required. Makes me laugh when you see it on a bike that does not see any track days or drag racing.
In that case, sticky rubber, aftermarket suspension, exhausts, or anything else for that matter is not required.
Im no speed demon, but a quick shifter sure as hell makes riding easier.
On the street, yeah sorta pointless.
On the track....even the newbie can benifit from being able to upshift while cranked over in a turn without upsetting the suspension, or when coming out of a hard hairpin left transitioning into a 3rd gear right hander.
The quick shifter isn't valuable because it shifts fractions of a second faster than one could manually, but because it makes it safe, feasible, and easy to shift in situations where it would otherwise be dangerous, awkward, etc.
Edit: Also, I would say in terms of importance, quickshifter should come before slipper. Rev matching is not that difficult.