The John Mayer Signature Stratocaster was one of the most highly praised guitars made in Fender's Artist Series due to one specific component, the pickups. Known as the 'Big Dipper's this pickup set is based on the underwound, mid-scopped pickups found in John's 1990s Stevie Ray Vaughan Signature Stratocaster. The mid-range scoop in these pickups mimics the same frequency charestics in many Fender blackface amps, making these pickups pair beautifully with Fender amps.