Considering I was told to prioritize normal diff for modding I never really did a check on insane diff. But honestly your insane difficulty is well done! Compared to the normal diff which is.. questionable. Anyhow other than that hit sounding is also good, and I noticed the timing was quite complicated so I'm impressed by the timing too!
Originally yes I did have a reason for doing this since the cymbals were more audible for the second build up and the claps were more to represent the beat that is prominent in the first build up, however changing the hitsounds to be consistent does sort of help to maintain the rhythm a little so Ill change them all to hitclaps.