00:21:937 (4,5) - you could reduce a bit that spacing, i know it's not that huge already but i think it would be more logic if it was smaller or similar than 00:20:829 (4,1) -
reducing spacing between 00:14:324 (1,2) - and doing your stack between 00:14:993 (3,4) - might be a cool alternative
-> it makes you having a good transition between following the piano and switching to the voice
What about changing 00:12:988 (1) - into a reverse slider in order to be coherent with how it's done here 00:07:671 (1) -
00:11:334 (3) - since this is active, what about also making 00:10:664 - active by reducing 00:10:352 (1) - and adding a circle?
The spacing in that section doesn't make that much sense, currently it feels like you're increasing/decreasing the spacing with to real objective behind
Something you could do is by example, having a big spacing for the cymbals and a smaller spacing for the kick or having more variety in your rhythm so not only having a focus on cymbals + kick?
There's also the same problem with the last kiai (not entierely since the music differ a bit)
04:26:459 (1,2,1,2,1,2,1,2,3,4,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,3,4,5,6,1,2,1,2,1,2,1,2,1,2,1,2,1,2,3,4,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,3,4,5,6,1,2,1) -
01:58:633 (1,2,3,4,5) - the fact you're actively mapping the vocals here feels a bit strange since you did a lot of long sliders in this section.
Something you could to in order to keep a difference is changing 01:58:633 (1,2) - into a 1/2 slider and then 01:59:069 (3,4,5) - into an other 1/2 slider but a reverse?
Like that you'll keep a difference in your rhythm for these two things if it was your intention.
01:38:633 (5) - nc since you're starting following something different which is also in a different mesure dividor (1/3)?
01:17:764 (5) - you could do the NC there instead of 01:17:981 (1) - since you're regrouping your NC per voice section for that pattern
An alternative to keep the mapper idea could be to remove 00:32:136 (6) - and start the reverse on 00:32:136 -