Seymour Duncan Hot Rails are one of the highest output pickups Duncan makes. It's a humbucker that fits into a normal single coil slot, so you get the noise canceling effect without cutting a large hole in your guitar. The two thin blades with powerful coil windings give you the incredible sustain and a fat, full sound that's needed for playing heavier rock music. This pickup responds to the subtlest finger movements. The Hot Rails is a high output single-coil-size “rails” humbucker. Great for classic rock, garage, punk, heavy rock, thrash, classic metal and nu-metal. It works for all well-balanced instruments. Works equally well with maple and rosewood fingerboards. Players Janick Gers & Dave Murray: Iron Maiden Troy VanLeeuwen & Josh Homme: Queens of the Stone Age, Greg Camp: Smashmouth Jim Wilson: Rollins Band Seymour Duncan completely re-vamped their rails and side-by-side single coil-sized humbuckers for Strat®. Gone is the plastic bobbin topper. In its place is a sleek body cover that makes installation easier and eliminates errant high-E strings from catching under the old topper. Even though they updated the look of these popular pickups, rest assured the one thing that remains the same is the great tone. To make sure they captured the same tone in the new versions, they undertook a rigorous bench testing and sound testing regimen. You can review the results yourself.