I just got Full Shred humbuckers to replace a couple of EMG HZ pickups in a guitar I got earlier this year. The bridge pickup arrived before the neck pickup did, and I assume that one will arrive sometime today or tomorrow. I installed it as the diagram suggested, connecting the black wire to the switch, the red and white wires together and the green and bare are grounded to the volume pot. However, when testing the pickup out, albeit with only one string, there is more hum with the distortion on than there should be. I get less 60 cycle hum with the Invaders I installed in my ESP Horizon, which are supposed to be louder pickups, the EMG HZ pickups that were in this guitar before I threw in the full shred or even the cheap generic humbuckers in my 7 string Squier. I'm not sure why this is considering that I wired everything correctly. The only things I can think of are that the Full Shred is noisier because it has alnico magnets, and the H4A the guitar came with had more hum than the H4. It originally came with a H4 in the bridge and a H4A in the neck. I tried switching them around because I didn't like the rhythm tone of the H4 but found that the excessive hum with the H4A moved to the bridge position along with it when I swapped pickups so I wonder if there is a chance alnico magnet pickups just generate more noise than ceramic. The only other possibility that I could think of was that the neck pickup slot is currently empty and the H4A harness yolk was desoldered this morning so that empty cavity could be a suspect. The last reason I could think of was that there is only one string on the guitar right now so that I have less work to do when I get the neck pickup. I know these sound absurd and just made up, but I can't think of any other reasons why my full shred would make this much noise. Any ideas on why this is and how I can fix it?