For a 6-string build I'd also recommend the JH set. It's amazing in a way completely different to the 57/66 and I'd urge you to get both.
The 57/66 and the JS set are by far the two best pickup sets EMG has ever produced, to the point that with the exception of my equally excellent and versatile SD JB/59 set (with split coil) I am an EMG fan all the way!
The 57/66 and the JS set are by far the two best pickup sets EMG has ever produced, to the point that with the exception of my equally excellent and versatile SD JB/59 set (with split coil) I am an EMG fan all the way!