Gerald - I've allways known more development time meant increased contrast, but, you're saying that I can leave the print in the developer for an additional 30-60 seconds longer!? I leave/gently rock it in there for one minute.
O.K. I'll start "experimenting with longer development times. I think that's where the problem could be.
Yes, paper development can be considered as development to completion. When the paper is first immersed there is a rapid change in image density but with time a point is reached when there is little change with time. It is at this point where the print should be removed. This is why I tell people to watch the print and not the clock. When there seems to be no change in the image then remove the print.
A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.