Your right @spikeyxxx , when I added the noise texture, 2 was not nearly enough so I ramped it right up to 16. I just tested it and got it down to 5 before it had a noticeable difference from 16.
This is one of those tricks learnt by watching @theluthier , a noise texture to influence the vector. Never needed to use it before, glad I was paying attention in class.
