When fitted to my SG Bass copy, they gave me an authentic 60s tone, deep and but without as much top end to the notes- easily remedied if you use a pick instead of fingers. A drawback was that the heavy gauge meant that the low E string needed a bit of work to fit into the bridge slot. A heavier gauge string also means that the usual tension of the strings is increased, so bending the strings slightly is harder - string bends on bass may not be to everyone's taste but try a slight bend on blues numbers, it sounds good! I'd not tried GHS before but they are less cost than other brands - Hofner say- and the quality is there.