Fender original bullets are an excellent choice for blues, jazz, and classic rock. The German-made bullet end fits precisely into fender tremolo blocks, enhancing sustain and stability. that means you get more for your money with original bullets; they stay in tune better and they resonate more than standard ball-end strings.by the way, the bullet end isn't just for trem users; it also enhances sustain and stability on guitars with string-through-body type bridge designs.