The Quiver Killer gets that name for a reason, it can still handle the low end spectrum like the Short Round, however the forgiving round thumb tail provides increased hold and control in powerful surf. What - The Quiver Killer is based off the Short Round with an emphasis on extending its prowess into larger waves. When - The Quiver Killer can be ridden in average to great conditions. Although it is a forgiving and versatile board, beginners will be suited on a more full and higher volume model. Who - Intermediate and better surfers should be riding this board.