I had seen examples of the omega solution and saw how colorful it made the prints.
Well, I'd like to just deepen the blacks (or create them) and leave the color alone.
However, maybe different dilutions will do that and this statement sounds promising
"On bromide silver emulsions and mixed emulsions with a high content of bromide silver you will observe little change in terms of colours, only the densities will increase."
Have you tried sending Wolfgang Moersch an email? I bet you he has what you need.
"Make good art!"
- Neil Gaiman
"...the heart and mind are the true lens of the camera".
- Yousuf Karsh
"We are what we repeatedly do. Excellence, then, is not an act, but a habit".