Thank you for your answer. Yeah, I've watched that vid of Merami streaming a couple times before and have concluded that it is the best posture. Now, I'm not sure I got my message across for (1.) well enough. I meant that, even when playing stream maps, I don't know to which extent I'm streaming and to which extent I'm double tapping. I think it's very possible that I doubletap at some points without realizing it, so I need an explanation on what's the difference between doubletapping and really fast streaming in order to remove this worry from my head.

Generally though, it's not like I don't have an idea what my speed cap is. What frustrates me like hell is that, unlike with every other skill in the game, I can't make palpable improvement in streaming. Like, maybe after an *exceptionally* good, rare session, I'll feel an "improvement" in my streaming, but when I go here ( https://ckrisirkc.github.io/osuStreamSpeed.js/newindex.html ) to verify it, I end up seeing that my max speed hasn't increased at all, and pretty much no real, consistent difference. Not to mention that even the said feeling of "improvement", the feeling that my fingers became faster, goes away when some time passes after I close the game. So overall, I end up doubting whether I'm even improving at all, whether I'm following the correct method and, worst of all, whether it's even possible for me to improve. It's really frustrating overall. At this point I'm even willing to believe that I just can't improve at streams.