Hi nine8six,
the Duramtreic camshaft deviation is the tool for poelpe who needs that special kick, when controlling the values and always getting different numbers.
So this is a keep you up feature when you own a Durametric.
As said it's just an indicator. But if you significant changes over time, than you might get into it. Which also means that you have to note the numbers from time to time and you have find the paper where you have noted the numbers.
Rendering: Well i suspected it, because all cars look the same. And i know your amazing headlamp visualisation renderings.
Regards, Markus