Do you have a reference for the 800m RVR being applicable to a circling approach? Looking at Appendix 1 to JAR-OPS 1.430, I can only find the reference for 2400m as being the minimum VIS for a circling approach. 800m RVR is only quoted in reference to a visual approach (not circling).
Just to clear any confusion, I am referring to statements in this thread such as the following, from NW1:
Circ. Min. Visibility is quoted for planning purposes and doesn't play a role in consideration of an approach ban: you may proceed with the circle as long as you have Vis Ref and 800m RVR or more (if reported)
800m RVR just does not seem to be relevant to being allowed to carry on with a circling approach (only straight in visual would be relevant).
Not that I don't believe you
But you know more than most that the name of the game is being able to quote exact references...
P