Scaning B&W negs with Nikon 4000ED

[remoteplaces]

I have 15 plus rolls of B&W film (Kodak Tmax 100 to 3200 ASA) to scan.

I would be grateful for help with scanner settings Nikon 4000ED). Intuitively I set it as follows:
- Negs Mono
- Greyscale
-14 bit
- x 2 passes
-4000 dpi

I then played and scanned as above but in RGB color. The RGB has slight warmth which I liked. With Digital ICE on (when using RGB), the scans were terrible. Why does it not give you the ICE option in greyscale and why so bad in RGB?

The images are for various print and electronic products. I need the highest quality scans and drive space for storage is not an issue.

My feeling is to scan in RGB as this will give me the flexibility of converting later to greyscale, but I keep the slight warmth of RGB.

Any advice appreciated before I spend the next few weeks scanning them in. Here are two of the images I just did. The man reading is with TMAX 3200 and scanned in greyscale. The woman’s face is Tmax 100 and scanned RGB. I added a slight sepia tone to the woman face.