i dont know if anyone uses these strings, but these strings have the best tone! maybe it is different if you have a string thru like me. if you have a string through body you have to try these strings! it is the cross between people saying that taper this and unexposed that. the E string is tapered and the rest are normal. just thought i would tell you guys that these give awesome tone. not sure of string life but at $18 a set it is worth buying.!