RR, I would think that this depends on what % reality one plays at.
What I find at 100%+ that if I either enter the range with the stadimeter, or manually, there are errors in both. Which in a way is it's own reality - if not reality itself.
Ellimating these errors with the PK in the standard methods, helps with the final solution obtained.
There are a lot of times that I do not stick my scope out, due to that escort 50m away, and enter the stadimeter range manually on the last 'known range' of the target - without a target lock one's range is limited which is a bit cumbersome, so 'I asked the dockyard techies to change this'