My right Chorus shifter has just stopped
kerchunking after 13 years use. I didn't realise how much I liked the clunk until it stopped doing it! The indexing still works but I have been missing shifts or overshifting without that obvious clunk to guide me.
PS I just found THIS ARTICLE on how to fix the problem!
Oh, and this video on YouTube showing exactly how to do it ...
I have never looked into servicing a Campag Ergopower shifter (I have never needed to until now) but I suppose I will have to while the best bike is mothballed for the winter.
I really like Campagnolo. If money is not an issue - go for it! I reluctantly have to say that I think Shimano is better value for money though ... (Compare the price of spare parts for the two brands and you will see what I mean!)