My SG-61 was bought new in 2003... -I found that adding Alumitone pups and the Stetsbar was a grand transformation for tone and creativity. The Alumitones beat the 57's and every boutique pup I've owned with a wider frequency response without sacrificing the warmth and power. The Stetsbar has a sense of mechanical "rightness" without the typical vibrato quirks (I was a machinist for many years). It does the subtle-Bigsby and extreme-whammy exceeding well while holding intonation. No body drilling or chopping needed. The additional Stetsbar weight offsets the typical SG neck-heaviness. Pickup surrounds are custom-machined ebony.