Has any one come across inner CV knocking before?.

The Reason I ask, Is that I had the usual CV knock when accelerating on a RH lock. However when the outer was replaced it was considerably quiter, but there is still what appears to be a light CV knock.

This is only happens when accelerating hard on a left / mainly right lock. Quite as a mouse when accelerating in a straight line, hence why I think it's the inner CV's rather than diff related.
2006 model with the later diff & just hit the 134k,