I dont play sg's, I did have an esp viper but I sold it to fund my bkp purchases.
Vipers look kind of like SGs but I think are quite a bit heavier and thicker and have very different acoustic properties despite both being made of mahogany. They are probably closer to a Les Paul or Firebird than an SG is, and tend to work well with bright pickups like EMGs. The main quality that seems to help an SG is a low mid scoop. This is because acoustically an SG has a low mid hump and not a lot of bass. The effect of combining a pickup with strong low mids is to pile low mids on top of one another and exaggerate them. With a scooped pickup like the Cold Sweat to be honest you don't notice the scoop because the low mid hump of the guitar balances that out. I think this is also why people have found the Rebel Yell to be more versatile in SGs than A-Bombs, because the low mids are lacking somewhat in that pickup by comparison with the A-Bomb. It is also why the C-Bomb works better for it than the A-Bomb and why the Miracle Man works well. The Warpigs seem to side-step that hump too, being more bassy
What this meant with my SG was that the Cold Sweat neck and A-Bomb bridge did not fit together like they might in another type of guitar. The acoustic properties of the guitar make the A-Bomb sound very aggressive in my guitar, and that doesn't sit so well with the smoother sounding Cold Sweat neck. I tend to think that a Nailbomb neck, which has a less smooth character, would work well with an A-Bomb bridge in an SG, as long as the application suited an aggressive, mids-driven sound.
I
really like the A-Bomb for hardcore sounds and miss it now that I've taken it out ... but only if I am playing hardcore stuff ... for everything else I find the Cold Sweat fits better. This is why I am very reluctant to sell my A-Bomb and believe it or not I would really like to have another SG (number three! the next one in ebony!) with that pickup and a Nailbomb neck in it. By no means do I think its a bad pickup. In fact I think that the A-Bomb is better in an SG than in any other guitar for a monstrous hardcore sound. It's just not something I would recommend to an SG owner as 'versatile'. I would describe it as a weapon, a musical flamethrower, especially through my amp and speaker combination. When I read about people using it for prog rock etc I feel like it's not the A-Bomb I know. Also when I see it described as 'dark' that doesn't fit with my experience either. In my guitar I couldn't get the dark Celtic Frost type sound I can get with Cold Sweat as soon as I roll the tone back to around 6 or 7. Actually I never roll the tone knob right back to zero with the Cold Sweat. With the A-Bomb I rolled back to zero and still couldn't get that tone.
Tones I got from it that were really good.
Lead channel: The Exploited, Poison Idea, Ratos de Porao, Sepultura, Possessed
Rhythm channel (with crunch): Rose Tattoo, Accept
Both channels (depending on mood): AC/DC
There were a few styles I didn't try of course. But I think that the A-Bomb definitely had the edge over the Cold Sweat for each of these styles. That said I can get close with the Cold Sweat and it can do a lot more smoother, mellower stuff that simply wasn't available on the A-Bomb.