Fitted thesew to my Gibson SG, having tried so many strings, at last i have found a set of strings that pull the best sounds and tones out of my Gibson SG humbucker pickups through my Bugera valve amp, now will have to make a stock for these, so i always have them on hand, also gave a couple sets to my freinds, as they needed strings, and both have come back and remarked on how good the strings were for the tones and sounds from the strings.