Elitefts.com Director of Education Mark Watts demonstrates the Elitefts™ Reps Boards while doing a 2-board to 4-board mechanical drop-set.  The Rep Board system is a great way to perform board presses if the lifter is by him/herself or with only one spotter.  Decreasing the range of motion is one way to extend a set without changing weight.  Although the process in the video would not be very common, it demonstrates the versatility and stability of the Rep Boards.