I'm a Seymour Duncan man. I've got several Duncans ranging from a Seth Lovers and a set of 59s, to Invaders and The Slug. I've only got one guitar with DiMarzio: Super Distortion / Red Velvet / FS-1 (HSS). One thing that's kept me from diving into DiMarzio's pool is that the Super Distortion has me fooled. I was looking for a dark set of HSS pickups. I went on their website and literally just sorted by bass output for a humbucker and two single coils, and bought some pickups. The Super D is SUPER BRIGHT...but really warms up well with the tone knob in that mahogany body guitar. So, I find it to be very versatile (cuts well with the tone knob up, and then gets stupid warm with the tone knob turned down). So, I'm happy with that guitar. But now I don't trust DiMarzio. I don't want to pull the trigger on something again and end up getting fooled in a way that I can't make sweet lemons like I did with the Super D. I'm learning that DiMarzio has a few tricks up their sleeves that Seymour Duncan does not. I'm not sure if it works the other way around. So, what are the "technical" differences between DiMarzio and Seymour Duncan? What can cause their published data on the Super D to be so totally out of whack with reality that the brightness of that "bass heavy" pickup is a topic on every guitar forum on the internet...??? I don't see that happening too much with the Duncan lineup, and don't have that problem with the pile of Seymour Duncans that I have laying around. -R.D.