I have a black SG Standard equipped with a couple of these amazing pickups. They of course shine on hard crunch and very distorted sounds, which is what I'm mainly interested for. Always clearly defined both on standard and downtuned tunings, this pickup tone is bassy and middle-stressed but NEVER muddy. It cleans up very well rolling back your guitar volume because it is very dynamic, despite its medium-high output (around 14 Kohms). It costs a lot, but you pay not only for the riffmaster name but also for an incredible quality, cool looking rock-metal pickup. Highly recommended.