Thanks, should set the modified data back now in the latest commit.
https://github.com/kwsch/PKHeX/commit/cd16a7721b04d0e02abf672feb0d17ab909ed929
Is read only for now, until the next release (before 11/17).
Roamer glitch IVs are able to be calculated but I prefer to show the un-glitched values. Basically just keep the HP IV and only the lowest 3 bits of the ATK IV. (bitwise AND 7)