I'm realizing that most of the Collab modding is on my part, and here's some modding of my own because why not.
bestz's easy01:24:218 (2) - Seems a bit weird ending silently, and AFAIK it's unrankable, keep it same volume?
01:30:400 (6) - Feels like it should have something after it.
01:35:491 (6) - ^, make it one repeat longer?
01:42:036 (8) - Feels like it should have something after it.
01:48:582 (5) - Finish sound? Clap sounds un-natural.
02:39:855 (3) - Seems a bit weird ending silently, and AFAIK it's unrankable, keep it same volume?
02:46:036 (8) - Feels like it should have something after it.
02:51:127 (6) - ^, make it one repeat longer?
03:02:764 (6) - Feels like it should have something after it.
03:04:218 (7) - Finish sound?
03:39:218 (1) - End this spinner 1/2 before start of next spinner, instead of 1/4?
04:16:218 (5) - Feels like it should have something after it.
04:22:400 (8) - Oh my god you actually put something there for once

04:27:855 (8) - Never mind. VERY feels like it should have something after it.
Winber1's Normal00:57:673 (3) - Hitsound feels un-natural.
01:18:036 (1) - End in a hitsound?
01:27:855 (4) - A clap in the middle sounds weird, one at start and end?
01:33:673 (4) - ^
02:05:309 (2) - Move clap to end, not middle?
02:13:309 (3) - Hitsound feels un-natural.
02:43:491 (4) - A clap in the middle sounds weird, one at start and end?
02:49:309 (3) - ^
Hard00:44:218 (7,8) - Feels a bit un-natural, space it more?
01:33:218 (7) - NO-ONE is going to expect this. Turn it into just a circle?
02:17:673 (4,5,6,1,2,3,4,5,6,1,2,3,4,5,1,2,3,4,5,6,7,1,2,3) - Everything whistling sounds weird, try something else?
03:30:400 (1,2,3,4) - Feels un-natural, change it?
03:53:673 (5,6) - ^
03:56:582 (3,4,5) - ^
04:19:036 (7) - Once again, NO-ONE is going to expect this. Turn it into just a circle?
Control01:44:218 (1,2,3) - Looks kinda ugly.
02:17:673 (4,5,6,7,1,2,1,2,3,4,1,2,3,1,2,1,2,1,2,3,4,1,1,2,3,4) - Everything whistling sounds weird, try something else?
02:48:854 (3,4) - I really don't see your premise in doing this. Turn it into just a circle?
03:47:127 (1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5) - Mixing a 1/4 with 1/6 stream is weird, try something else?
04:19:036 (3,4) - Once again, turn it into just a circle.
Collab00:50:945 (3,4,5) - Feels weird.
00:52:218 (2,3,4) - ^
00:53:855 (3,4,5,6) - ^
00:56:582 (2,3,4,5) - ^
00:58:218 (2,3,4,5) - ^
01:10:945 (1) - Make this straight, I wonder why I liked it wonky
01:19:309 (6) - Get rid of the overall whistle, make it just on the last two "hitcircles". Wonder what happened there
01:43:855 (5) - Fairly unexpected, IMO.
01:48:036 (1) - End 1/2 tick earlier?
03:04:036 (6) - Make it just a circle?
04:13:764 (4) - Remove?
La, that's my first proper modding~