The cables and outers have been kept well lubed with teflon spray.
The shifting is smooth and without resistance - my problem is that the "clicks" on the gripshift between gears are becoming progressively less "clicky", meaning I sometimes over shift.
What I really want to know is if anyone else has had this problem and how they resolved it - preferably without replacing the shifter, but if they did, what shifter was used as a replacement.
R