thanks a lot for your reply, I'll try and look into it or maybe call someone how does it for me cause i don't really know how to get to the action mechanism and it doesn't look easy anyway...

thank you!

Hi, I recently bought a great sounding cp60 though it had a lot of sticky keys, that wouldn't come back up after pressed, I called a trustworthy tecnician to tune it and oil it a little bit around the whole mechanism to try and loosen the keys and he told me that would do it though i'd have to play ...