Printing color negatives on standard black and white paper: I know this simple issue has been brought up before, but I'm again wondering if anyone has experience doing this, since I'm forgetting what I used to do. I've recently tried printing color negs on Panalure, but I don't like the fact that I don't have conrast control. A few years back I played around with printing some color negs on black and white paper. If I recall, the trick was using a darker grade filter as a base, but I can't remember why. I do remember that the exposure times were pretty long. I haven't done this a lot, and I'm sure there would be some differences from real BW negatives, but I'm willing to try it if I have contrast control. Thanks.