Yes I know there is already a thread about rockfall on Castle Rock N Crag. I have started a new thread as I have some new information that I didn't want to be hidden away in the middle or at the bottom of another thread.
There has recently been dramatic movement of the huge block on the upper LH side of the N Crag.
There was an "earthquake" at Grasmere on 6/3/18 and earth movement was felt at Thirlspot (which is a couple of hundred metres from the crag). There was an earlier event on 28/2/18 and these may have contributed to the movement. At this time of the year there is normally very little movement so something seems to have changed.
As I can't post photos here please have a look at https://www.frcc.co.uk/castle-rock-north-crag-rock-instability/. You will see that the two glass plates that were measuring the mm of movement are now l separated by cms.
If you still want to climb there be in on your own head, it may well be!