Completely agree. There are times where I can't tell a different to save my life. And then there are times when I'm like yes, I actually do hear and feel something different. Even if it's just a subtle change in character.Actually, the placebo effect is quite common here, and has been for several years! You are in good company.
Placebo effect is absolutely a real thing. Cliff says, such and such sounds great, then all of a sudden it's all people talk about when the firmware is released. lol
If there was no mention of what was actually improved, it would be truly amazing if someone could pick it out.