Quite honestly, zilch0md, I think your response is disappointing.
I'm not surprised by it, you want to continue swapping opamps and talking about it. If you really paid attention to what jcx wrote, and the stuff in the Sound Science forum, you'd have to give that up almost in its entirety.
Sometimes our illusions matter more to us than the truth, when we have a big emotional investment in them.
I want to continue designing bits of electronics and talking about them, and electronic design, and sharing what I know. So I try to avoid getting into these arguments, because they rarely have a positive outcome. I'm not always successful, though, and anyway, you never know your luck.
I have external confirmation of my ideas, there's certainly no way that many of the things I build would work at all if I didn't have a good grasp of how they work. That's how I get satisfaction from what I do, I build things, they work, it reinforces my world picture. What they call a vicious circle .
Of course sometimes they don't work, the universe spits them back at me, and I'm forced to change my ideas. Or at least acknowledge that I made a mistake. They do happen. As they say, the man who never made a mistake never made anything.
I recommend this activity to you, or some other truly constructive activity. I don't recommend carrying on the way you are going, it's pointless and unrewarding by comparison. Opamp rolling isn't even a hobby, it's just a habit.
Again, I don't expect you to be very happy when I say this, I probably wouldn't take too kindly to being told that what I do is pointless and unrewarding, but there's no point in dissembling. Just try and accept that it's said with the best of intentions. I know you believe in it, but I don't have to believe in what I do, I have the proof in my hands.
You say that you don't have any choice. I can see how you might feel that, but I know that you do have a choice, uncomfortable as it might be on occasion to acknowledge it. If you live forever within your comfort zone, you look forward to a life without progress.
So, all you opamp rollers, get out there, grasp the nettle, get out of the paddling pool and learn to swim. Or whichever mixture of metaphors takes your fancy. You know it makes sense.