Very disappointed in this product, and I shall be asking for a return, specifically:
1) Coil is not potted, just copper wire (which is visible) with a bit of tape wrapped around.
2) On mine the mounting holes on the base were neither drilled through fully, nor tapped to take adjustment screws. Neither were any mounting screws supplied.
3) Appearance is poor. Coil is just wrapped in black tape and some copper is still visible. I wouldn't want to use these without a cover to hide it.
4) Wiring instructions are poor compared to other manufacturers (though at least the option to wire as you want is present).
I bought this to fit to a new build instrument, but the quality isn't present for me to go ahead and fit it, so I can't comment on the sound quality. It's a shame because other Shadow products I've used have been very good. However, it's clear you get what you pay for, and I shan't be using this one again.