If You Claim You Can Hear Any Difference In Tone You Are Full Of shiteeee.
If you can't hear a difference between the Invader and the Aftermath, you seriously need to get your ears checked. I'm not even being facetious here. I am actually literally recommending that you see a doctor, because even on cheap computer speakers I immediately heard it. Through studio headphones it's a relatively drastic difference. I'm worried for you. (Also, please stop capitalizing every word.)
The Aftermath had way more detail. You can hear it in the pick attack, you can hear it in the immediate dryness. It's naturally squeaky tight, and the Duncans are mushy. The tone Keith is using isn't quite saturated enough to hide that. In the chugging part you can hear the immediate start/stop nature of the Aftermath's tightness. It also has a more open sounding midrange that's still angrier than the Duncans.
Whether any of this counts as something you want in your tone is a personal question, but for me, the Aftermath definitely has a lot more going on than the Duncans. The Warpig also sounds bigger and more intense, and has a thick pick attack that's still noticeable with this tone, even through computer speakers.
