OK, glad to hear I was mistaken, but it certainly seemed like about halfway through your first response you went off the rails and decided to take my question as some sort of personal affront. It was not the strangest response I've had on HN, but one of the strangest. I could go through with a full analysis of why I thought "this guy is having problems", but that would take a long time and as you say you aren't I guess it isn't particularly useful.
I guess we aren't going to get anything meaningful between us on this subject, because you seem to think it is like arguing with an anti-vaxxer, which funny enough I thought the same thing,
So fine, you experience a gain, you just do, and it is so clear and evident you don't need to guard yourself against being deluded despite studies suggesting that gain is not there. That seems crazy to me, I would doubt and want to verify my gain if I read a study suggesting the gain was illusory. No meaningful convergence seems possible between needing verification and not needing verification.
I like remus' comment to your previous message; you're telling a guy with a chainsaw who is busy chopping down trees at lightning speed that he should stop and defend his daily experience against some studies that suggest tree chopping speeds are not what they seem.
At some point you just have to shrug and get back to work chopping down 3-5x more trees than you did last year.