If you're wondering why the HDNs don't sound great, here's why, one of them (the bridge one) had been wired-up incorrectly at the factory and only one of the coils was functional, the other one had been wired so that the short wires coming out of it were soldered together, the wires that should have been soldered to them had also been soldered together, the bridge HDN pickup should have read 16k on my multimeter but was really reading 8k, I have since fixed it so it works properly, I can't believe it had came brand new and incorrectly wired from the factory.