Quote Originally Posted by Bob-D659 View Post
Adding a #2 or 3 printing filter for multigrade paper will make a huge difference in exposure time if you are using multigrade paper without a filter.
+1

If you are using variable contrast paper, my advice would be to almost never print without a filter.

The only exception would be for prints where the negative density and enlargement are such as to require exposure times that are inordinantly long.