Originally Posted by
rogerstg
Many mechanics do it that way, which is why so many bikes go out of adjustment so quickly when the housing ends compress a little.
I know, and that's why I really try to shove the housing back into the cable boss to secure it. Hopefully it'll do alright.
There is a range of ~ 3 full turns of the barrel adjuster between gears (on a 9 spd), so a better method is to turn the barrel adjuster ~ 1.5 turns after it shifts. That puts the RD in the middle of it's range. That way when the housings wear or compress a bit (aka cable stretch) there will be enough range to keep shifting properly.
Cool, thanks.