As mentioned in IRC, some points to suggest. A faulty spinner on Normal is enough to pop the bubble, I'm sorry.
Easy and Normal - Suggestion for Slider tick rate 2. Not to inflate the scores, but for some better-sounding effects to a plain map.
Easy has no problems.
Normal
01:10:81 (1) - Extend 1/2
Hard
I mentioned this earlier, so I need a second mod to ratify or discount my arguments.
00:54:41 (1) and similar spinners- Yes, I know this difficulty is "Hard", but please be reasonable about it.
Realise this - Insane is probably only FC-able by a select few (no prizes for guessing who!) so Hard is probably where most of the not-quite-there players (like me) will try. If you put spinners like this to throw players off, in my opinion such a mapping pattern constitute unfairness. I'd much rather see this in Insane than in Normal.
Insane
01:13:11() - I swore, I expected a beat here.
01:13:41() - ^
Bubble popped. I hope you don't curse and swear at me.