Can be used as an Anchor or a Leader template. Great for increasing volume without crushing you. First Set Last (FSL) is easy to program and the numbers stay in line with your progress and your programming. A Widowmaker set is usually done for 15-20 with 20 reps being the goal. FSL is also an ideal way for athletes to train as it's easy to recovery from, the volume is easy to regulate, speed/power is maintained and now you can actually do all the other things an athlete must do: run, jump, agilities, skill work and in most cases, school work.