Thanks House, the caps look great. Nice and grainy and contrasty. It's safe to assume that any softness is due to the original source, or the state of the source at the time of the restoration.
And even at these fairly high bitrates there's the slightest hint of blocking in some of the shots, and more clearly visible in Part III. Definitely would not want to see what a shoddy Warner encode of this material would look like.
The thing that strikes me the most however is the fact that the films are all 1.78:1. Not a huge issue in itself, but I seem to recall RAH saying these would be OAR 1.85:1.