spread looks kinda fine for me, however:
personally i consider 168 as pretty high bpm for 1/2 transition in the easiest diff 00:51:567 (3,4) - 01:26:567 (4,1) -
also in your normal i'd recommend making last path of R letter here 01:32:817 (1) - be like, more visible and separated, thats 01:33:830 - too much inside imo..
also in hard its unclear for me why would this get such a spacing change 01:03:531 (3,4) - 02:07:638 (6,7) - when 01:06:746 (7,1) - 02:07:103 (5) - such strong beats has average one. (additionally these 01:17:103 (5) - 02:07:103 (5) - kind of parts better be done with clickable objects but not totally covered with one reverse slider. it just feels not right at all even though the sound is kinda ~walking~ here, i can understand that logic of reverse but still..)
in first insane i dont feel like 1.20x sv suits the that spacing used during kiai time, its rather too fast and objects are too close
01:56:299 (3) - 01:54:871 (3) - totally inexistent and unnecessary notes
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i qualified a set (
https://osu.ppy.sh/s/232842) with ~alike hard-insane progression (that one was even questionable lol) if this is why you made this thread and i guess the current spread here is pretty much okay. however if it was me putting 2nd icon here i'd say emphasizing some strong sounds and downbeats with bigger spacing in hard diff, like i mentioned some, wouldnt hurt
just some stuff which caught my eye