Firstly the buffs to trainees, while well-meaning, are kind of pissing in the wind when you also buff enemy stats. Ross was already in danger of getting doubled early, and now he does get doubled. Amelia's +1 speed is not going to make a difference when by the time you get her, enemies have gotten between 2 and 3 extra speed from their increased speed growths.
Enemy stats have probably been buffed too much, and too blindly. Sacred Stones has never had a problem with human class scaling, as well it shouldn't since it literally uses identical growth/base data to FE7. The problem is mainly with monsters and their lower bases, vulnerability to S Rank weapons, and overuse of weighty Steel weaponry.
I feel like while nerfing everyone else good, you forgot to nerf Cormag.
No addressing the really terrible weapon rank dickings that some classes get? I speak, naturally, of E Swords for Falcos, E Bows for Warriors, E staves for Druid and Summoner, and E weapon ranks for Knight->General.
Other than that, looks good.