I've managed some time to come back and update my core mods. They now come in the form of packaged game pcc files. You use them to replace the original game pcc files and then update your game and DLC pcconsoletoc.bin files with ME3Explorer. Instructions in each package.
Shortened the hem, narrowed the hips, reduced the butt, corrected the posture, reduced the breasts. Original on left, new on right. All work in game.