Yeah, Jeremy, I'm not married to those knobs, I just happened to have 3 matching gold speed knobs in my parts bin. The sound of the pups I can best describe as a marriage between the best properties of a strat pickup and a P-90, very clear and articulate, but with a lot of depth, very full-range, plus they seem to be responding really well to my tone circuits, so there's a lot a tonal breadth available. I just played with a friend of mine, to put it through its paces, and I'm really impressed with the sustain! Before I did the inserts, I put a thin layer of epoxy in the neck pocket, covered the heel of the neck in Saran wrap, then clamped it in place, which gave me a really solid and even mating surface between the neck and the body. Between that, the machine screws and really locking down the tremolo, notes are ringing for 6 or 7 seconds, before they begin to taper off! I was expecting some sustain improvement, just based on the mechanical coupling with the inserts, but this went way beyond my expectations...