New pickup day! Pegasus, Sentient, Alt. 8(Shoutout cameron for the recommendation AND sale!), and Jazz. I've had these in about 2-3 weeks so I was really getting to know the pickups before I posted about them, and where to start...
All statements here on are my ignorant opinion and experience!
Pegasus: A little bit on the compressed side, obviously made for prog/metal, however, it's very dynamic(takes heavy pick attack well) I found it somewhat boomy, but that could be the dogshit cleans that my 05+ gets. With a split or 5 way it gets really spanky/spongy, and gets fun to slap and spank.
Sentient: it could be my memory tricking me, but this was very reminiscent of the liquifire, thought this seemed fuller, and smoother. When I first got it, I found it stiff, but I played through it, picked like a man, and is now my favorite of the two. This is one of those 'notes jump out of the fretboard' kinds of sounds, though I think it'd be suited for an ever so slightly brighter guitar.
Alt. 8: I'm gonna start by saying this is one of SD's highest output, the second, iirc. This pickup, however, does very well for almost anything. Due to the output it can be boomy, but I'm still playing with height. This was reminiscent of Govan's whiny/wailing compressed sound, and I could damn near get a good tone for Fives instantly. Very balanced, and very clear. Splits well. LOUD cleans, but you'll be more than fine with a split.
Jazz: I have this in my Mahog/Poplar S2170, and I thought it to be bass-y, so I thought I'd throw it in a guitar made of the brightest woods. I'm really glad I did try this, because this is a fucking perfect pickup for a bright guitar. It can get smooth, screech, flow, and shred. Really happy with this choice. Of course, it cleans up like a champ.
All in all I'm very happy with my choices. The biggest surprise was how fucking gnar the Alt. 8 is, I was skeptical due to the obscene output 17k IIRC, but if I could go back, and take a chance on BKPs or Marzios, I'd still spend the $50 on the alt. 8. The Peg/Sent set lived up to my expectations, but I still reach for my SL2H or S prestige more, so I doubt I'd buy th set again for my next 7.
Duncan'd da fuck out, dawg.
Also, I've been happy with most of my SD pickups (granted, half of them are P-Rails ).