I am going to purchase a Shecter C7 Custom, and I plan on switching its pickups out for Bare Knuckles when I get it. It has a mahogany body with a maple top and a maple neck with ebony fretboard.

(I'm sorry the picture is so big, I was having trouble re-sizing it)
This is my first seven string guitar, and I plan on putting an Alnico Nailbomb in the bridge, as I already have it in another guitar and absolutely love it. I don't play hardcore metal or djent or anything like that, so I don't think I need the ceramic version, but if those of you with seven string experience know any better, let me know. Will the Alnico version be tight enough to handle the low B string, even when it is de-tuned to drop A?
However, what I really want to know is this: what Bare Knuckle humbucker will give me a warm, balanced clean tone in the neck position? I've been thinking Cold Sweat. Will that give me the warmth I'm seeking, even with the maple neck with ebony fretboard? Hopefully that will work, because I'd also enjoy a nice smooth lead tone from the neck pickup as well.