Thanks Bfisk,
I understand what you're saying. I am finding this interesting from a practical point of view for day to day flying and appreciate the info that is coming out from you guys. At this stage I am thinking that VMR is simple, just select CI 0.
VMD is looking more and more like s/e drift down speed and the speed from the hold page is slightly lower than VMD and not a speed I want to use in day to day operations when in the flight levels.
Cheers.