I just added Nordstrand NJ4SV hum cancelling pickups to my Lakland Skyline DJ-4. First impressions are positive. These pickups are dead quite in any setting and have plenty of punch. I loved the tone of the stock pickups but the hum just bothered me. Thanks to those on here who recommended the Nordstands. I kept the stock pickup covers. The Nordstands came with a flat black cover. I liked the stock shiny black ones. And man, that pickguard pickup cut out was tight! I don't have a before and after recording, but to my ears, they don't sound much different at all. If anything, just a touch more bassy. And the A and D poles are slightly raised.