An update or separate page on the RNG hitrates for fates/echoes would be great - most people incorrectly think it's a weighted average (3A+b)/4 (which is very close, but still incorrect).
Current hitrate page for serenesforest (only includes 2RN): https://serenesforest.net/general/true-hit/
At the moment, I made a google spreadsheet for the speedrunning community that lists every calculated hitrate for both 2RN and fates/echoes hybrid RN (I included a tab with my sources and the user who reverse-engineered the formula). Something like this wouldn't be needed if Sf was updated.
https://docs.google.com/spreadsheets/d/1ws6qbUqIlmc-2wDBPWvXEk7uxdypkJObyR4bPsYDLIg/
tl;dr, fates/echoes RNG is 1RN at/below 50%, and is this piece of garbage with 1RN above 50%: