I don't think that this song is a good choice for kiai time. No section really stands out enough to deserve it and it ends up looking a bit overdone. The timing of this song is still scaring me, but I can tell you that the offset 51252 is at least 20ms early.
Hard:
00:22:987 (7) - Falls off screen quite a bit. It would be easiest for you just to raise the whole pattern up.
00:24:938 (2) - Remove the clap from the end of this because the pattern in the song ends in a different percussion sound. That's a good enough explanation, right?
00:35:426 (6) - Put a new combo here for the sake of reducing combo length.
00:38:597 (1) - Remove the clap from the end of this for the previously established reason.
00:42:255 (3,4,5,6,7,8,9) - For this, I would make all of these objects claps and use multiple inherited timing sections to lower their volume as they go.
01:57:105 - Drag the break beginning here 1/1 forward so that it lands on the main beat. Not a necessity, but it makes for a nice effect with the timing of the letterboxing and everything.
02:07:867 (2) - Remove the clap from the end of this for the previously established reason.
02:30:764 (1) - It would make more sense to extend this 1/1 so it lands (vaguely) on something in the song instead of silence.
02:32:715 - Quite an unnecessarily long break. Please continue mapping from 02:38:650.
03:02:902 (1) - Add a clap to the end of this for a previously unestablished reason.
03:19:371 (3) - Looks a bit messy with the overlapping right now. I'd just distance snap it to the bottom left so that it forms a triangle with the previous two objects.
03:40:724 (4) - Way too big of a dick move here. This would be covered up by the score burst things of the previous objects as well as the objects themselves. Please at least change the direction if not the position of this slider.
03:48:450 (1) - Perhaps use an inherited section to reduce the volume since there is no real clear cutoff point here for that note.
Insane:
00:36:619 (3,4) - I'm sorry, this is really minor, but it's slightly off. Ctrl+H, go.
00:39:546 (3) - One grid to the left, why do you make me do this
00:42:473 (3,4,5,6,7,8) - For this, I would make all of these objects claps and use multiple inherited timing sections to lower their volume as they go.
00:49:815 (1,1,1) - And I would keep this all within the same combo because there is nothing distinct really seperating them.
01:06:861 (1,1,1,1) - These too.
01:10:764 (1,1,1,2) - And these. Frankly, it just bugs me that HP drain gets screwed over as a result of arranging combos like that. Do the rest on the repeat as well, should be clear to you.
01:19:544 (1,2) - I feel that this quite an unwarranted jump.
01:36:617 (1) - Ctrl+H, yes. You go move that left some more for symmetrical goodness. Also, remove new combo because of everything I said earlier.
01:37:593 (3) - I would put this on a new combo because it's both quite a big jump and quite an unexpected and silly little thing in the song that's out of place.
01:46:861 (1,2,3,4,1,2,3) - I don't think the spacing increase really works well. May as well stay the same as it is in the previous combo.
01:50:276 (1,1) - Remove new combos, they're within the same phrase etc
01:57:105 - Drag the break beginning here 1/1 forward so that it lands on the main beat. Not a necessity, but it makes for a nice effect with the timing of the letterboxing and everything.
02:05:886 (2,3) - It'd be a good idea to double the spacing here. I think it's a bit confusing with the way it is because despite the slider end being on the left, nobody is going to actually follow the sliderball here, they're just going to keep the cursor in the center, right? So it makes the upcoming object seem a bit misleading.
02:09:788 (1) - Removing new combo business once more.
02:17:105 (1,2,3,4,5,6,7,8,9) - This is failing to be symmetrical in a way that grid level 4 is not precise enough to fix. I find that hilarious. Please don't bother changing it.
02:18:325 (10) - I would put a new combo here if only for the length of the previous pattern.
02:30:764 (1) - It would make more sense to extend this 1/1 so it lands (vaguely) on something in the song instead of silence.
02:32:715 - Quite an unnecessarily long break. Please continue mapping from 02:38:650.
02:55:074 (1) - Remove new combo, ah, I hate saying this so simply.
03:03:381 (1,2,1) - Love these, just saying.
03:12:406 (1,2,3,4,5,6) - You could do some cool new combo trickery here and have something like
this going on.
03:32:310 (9) - Considering the length, I would put a new combo here too.
03:45:937 (1,2,3,4,5,6,7,8,9) - I don't really like the spacing decrease here. I'd like it more if the pitch were going down in all of the notes in the song there, but they aren't, so it isn't such a great idea I think.
03:48:450 (1) - I'd remove the finish here and perhaps use an inherited section to reduce the volume since there is no real clear cutoff point here for that note.