I saw this post when I was 400k, 356k now so I'm qualified, I think.
My comfortable range is low/mid 4* to low/mid 5*, currently have 14 6* pass (high 60s at worst, mid 80s at best) and one 7* but, it's Immortal Flame so I like to think I haven't passed 7* yet.
I'm not sure about my comfortable FC range since I usually play maps uncomfortably or a bit out of my abilities, don't worry, I enjoy playing the game this way.
Accuracy? What's that? Never heard of it.
My current proudest play is Monochrome Butterfly Mysterious difficulty, despite the poor acc (69.99%, no NF), Highscore 500~ combo, and Alternator Compilation.
My current goal is passing JUSTadICE Extreme with Flashlight because it's fun and, get more comfortable with Tap Alt. I still just tap for jumps, stream normally, and Tap Alt for everything else. I will keep streaming normally though, I don't really see a point in Tap Alt streaming, the trade for speed with accuracy and finger control is not worth it here.