Decided to try something different last night as the light show started and never tried anything like this before.
Could only use the 100-300 zoom lens as I have a light pollution filter in place in the body of the SLR and that was not the time to be fiddling with it.
This meant the area of sky visible was very small-
Also focussing was a nightmare ( as you can see)
No idea at all on settings so flew blind
Out of 100 shots managed 3 forks all blurry unfortunately - if anyone has any tips I am all ears