Quote Originally Posted by Mainecoonmaniac View Post
It's always good to have some shadow detail in the bank with your negs right? You might want to use it later. If you want no shadow detail by under exposing your film, you're sure of yourself. It's like doing a crossword puzzle with a pen.
Depends on your system and your experience. For slide shooters it's just how they shoot anyway.

It can be done very reliably and there are truly good reasons people might want to minimize exposure on regular B&W negative film.

It allows faster shutter speeds, reduced grain, and faster enlarger times.

The biggest advantage for me is not having detail in the bank but having latitude so that I don't have to think about resetting exposure in the middle of a set, latitude let's me worry more about composition and timing.