Here, you’ll see Bishop’s High School's setters Camille Stepanof and Kelly Forte competing in a 2-person drill that they do every practice. The winner is the first player to set 25 balls through the hoop. Front sets first, back sets next. The players set from a live pass.
Adding an element of competition in practice is always a good thing. Not only is it fun, it more closely replicates the feel of a match than a non-competitive drill.