Laserschwert said:

What I noticed in your regrades though (including the SW shots in the color matching thread) are the occasional blown out highlights. In the shot of Indy and Sallah by the map room, the sky has some areas where at least red and green are at their full value of 255 (which you should try to never reach in an image), while the original image still has some variation in there.

The dark areas show similar problems with some details just being swallowed in black. It's not by much, so flattening the gamma curve just a bit could help with these problems.

Apart from that I feel the images look a bit oversaturated, but I'm not sure if this is a tendency 35mm material has.

In principle this method is mainly aimed at reproducing the color properties of the reference. If the reference has blown out highlights, and is saturated, so will the regrades be.