I am going to do 3 sets with required reps but go till failure on every set. (fitnessandpower.com)
Lewis is also a great fan of dips, which he performs by trying to reach failure on every set with 20 + reps, using only his bodyweight and making sure to squeeze the muscles as hard as possible during each rep.. When targeting the triceps with dips, he tries to keep his body as upright as possible in order to avoid activating the chest muscles. (fitnessandpower.com)
Multiple studies have shown that training to failure on every set leads to increased resting levels of catabolic hormones and reduced anabolic growth factors, which makes frequent training to failure absolutely counterproductive. (fitnessandpower.com)