Hi Spar lad,
You are correct the dumps from North Vein did mingle a little with those of West Cross Vein, but when I was there in the 60’s it appeared then, that there was a ‘gap’ between the two tips.
Also at that time there was an entrance to the level on the West Cross Vein, but it had run in just inside it.
However, most of the diggings at that time were small and in this vein, hence my comments.