Accurate elevations and geoid reference

Ucenter is using an averaged egm96 grid only ellipsoid related. This puts my surveyed elevations +/- 7 meters too high and on a skewed plane not relative to level. EGM96 geoid model is +/- 1 foot accurate to geoid 2012 but with the way ucenter averages the height it’s worthless MSL data.

I would like to see Ucenter implement geiod files like other GPS manufactures have but I do not see them moving forward in this direction yet. Is there any way for MP to use geoid files and do the MSL conversion from the elipsoid height? @Michael_Oborne