Originally Posted by Bill Clark
When I develop film I lean to a little longer developing time. If the negatives are a little darker I can run the enlarger exposure longer but weak negatives are harder for me at least, especially if detail is lost. However, the black and white films I use have a fair amount of latitude.
Just my thoughts and experience.
That is a very bad idea. Longer developing times do NOT give the same effect as longer exposure. Instead, it increases contrast which makes it hard to print the film with full highlight and shadow detail.