Having trouble getting coldsteelj's Fallout 4 weight gain mod to work properly

I know that there’s a guide on his Deviant Art on how to install the mod but no matter what I do, I just can’t get it to work right. I was having a hard time to get textures to work properly, and getting bellies to not look jagged.

i worked for me once a while ago but my game crashes on startup now so i can’t play with it i think for the mod outfits you need to have the mod the outfit is from for the textures to work

Not sure if this it the problem, but in Bodyslide, put the SSBBW2 to CBBE slider to 0%, and rebuild the outfit(s) you want.