I think your original question was answered, what are you getting at? Bronze and stealth have already gave you their slight differences between the tanks.
I thought I was pretty clear, I disagree with Q that the Achilles and KM3 are "Two entirely different types of atties, with two different types of vape experience." The ensuing discussion had nothing to do with my original question and I didn't care to discuss it further.
What are you getting at?