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.
All females had the same problem with their bodies in the game (the skirt versions or their romance bods): horrible posture, wide hips, big butts. I have gone through and changed all that. Original Allers on left, new Allers on right. Same deed done with Brooks, Ashley, Liara, Traynor.