I shot some photos yesterday in the fog out at Lands End in San Francisco. I gave them all N exposure, but what should I do for processing? process as N, or should I give N+ or N- development? I'd like my fog to have a little texture and print somewhere around a zone VII/ zone VIII, not paper white. I'm shooting 4x5 Ilford FP4+ and will process in PMK Pyro. Many thanks in advance!