I've just made a discovery.
Not linked to Red only but didn't have time to check with other footage.
It's about the scaling filters used in the decode settings into the Scratch play. I ignore if those can also be parametered inside RCX as well.
That needs to be seen and if you have imputs on that, please post.
BUT...and this is an important "but",
The choice of the right-filter-for-the-right-job affects the results. Just like in stills.
In practise, it means that according to the filters (some are better for upsampling, others better for downsampling wit different smoothness outputs)
one can acheive the right amount of sharpness without using any sharpening tool.
It also means that you can use the correct filters in the case that you zoom into your R3D to reframe a shot and therefore minimize or control the right amount of sharpness or smoothness desired
without having to defocus.
In other words, they affect the decode when up or downsampling.
Here is the list you can apply:
linear
cubic
Sinc
Lanczos
Triangle
Box
Gaussian
Mitchell
Quadric
B-Spline
Mipmapping
Proper tests have to be done but there are infos in internet on how those filters act and for what they are good at or to avoid according to the cases.
The scratch play also allows to load those filters into the dual monitor itself and not only the saver so zooming on your right monitor will show you the effect.