Took a quick glance. Looks nice. Timing feels much better with this though
1. Offset: 12,286ms BPM: 140.00 3/4 time
2. Offset: 43,143ms BPM: 140.00 4/4 time
3. Offset: 86,000ms BPM: 140.00 3/4 time
4. Offset: 127,142ms BPM: 140.00 4/4 time
5. Offset: 169,999ms BPM: 140.00 3/4 time (but there are no notes here, so whatever)
I could be slightly mistaken, as my volume is a bit low right now, but i'm fairly certain the offset doesn't change where you had it. (all the sections above are for changing meter only.)
I've also only looked at insane, but it looks nice. Nothing jumped out at me.(except the timing.)
Also get rid of the countdown. It sounds horrible.