Particular songs that helped a skillboost?

[Shadowcliff]

I already gave some praise to hi19hi19 for his Cheat Codes stepfile (dance2, d 55), but that stepfile alone helped me skillboost like hell. It could be an outlier, or an easy song amongst the 55's for its shorter length, but I feel as though I'm suddenly reading notes a great little bit faster as I follow this song with more plays across dance/classical genres.

I've been working my way up the difficulties in dance/dance2 to see what I can FC without mashing. I was at around 50/51, then I played Cheat Codes, FC'd with good accuracy on the third play. And I just played it again, 24 hours later, and I'm 10 arrows away from a SDG. Without trying too hard at all!

I'm curious who has experienced that feeling. What songs brought you an unexpected skillboost?

tldr; I am a paid advertiser of hi19hi19, with what songs did you realize you had broken a plateau?