First post on here so want to say hi to everyone.

A question I have is when Ramping on DSLR Dshboard and I want to adjust the reference, what is your opinion on how much should I adjust in increments of ?

Would experiment myself but in true style I go on holiday in a couple of weeks so not much spare time on my hands.

Thank you in advance.

You just adjust the reference, if you feel, your images are getting too bright or too dark.
I normally adjust by one or two presses of the button then wait and let it reach the new values.