Thank you for the explanation of PBR. I had never heard of it either.

@searchnasaigh-this is very good to hear about the Adaptive Sampling w/Threshold. The long render times can make or break the work flow.

@TwiztedKidd- yeppers! I have a process I use and when I am working with deadlines, messing about with the nodes and all really doesn't work too well for me.