First of all I want to thank you for your reply, very helpful!
News update:
I started grading the programme today as if I was working with the original slog camera files, no luts involved and happy with where it’s going. I get a call telling me that there is a drive with some (not all) original log footage. Because I can’t get all the files I carry on but ask them to send drive over anyway. To cut this story short…I brought into Resolve an slog shot that has been used. Stuck it on layer 2 and applied the exact same grade (5 nodes) and toggled between layers, MXF DNX185X and slog3. To my very keen eyes and indeed the external scopes there is nothing between them, not even a nats movement on the scopes. All very interesting!
Thanks again.
Dan