I have had unimpressive results with true, 00/5 split filter printing and don't really consider it while printing, but when needed, I don't hesitate to add a second, brief, high contrast exposure just to punch up and enhance the Blacks and deep shadows in a print disproportionally to what I can achieve with a single grade exposure.

I haven't read Anchell's VC book but was considering buying it with a bookstore gift certificate that I received for my B-Day. How do you like it?