how do i convert this outfit to 3bbb

[imabigree420]

i recently found this awesome looking outfit and id like to convert 

 

i have a preset body i built in bodyslide and outfit studio that i love to use but this mod every time i edit it in outfit studio it never conforms to the bodytype i created even though other outfits do 

is there something im missing? 

 

the mod https://www.nexusmods.com/fallout4/mods/77469?tab=posts

 

in outfit studio: picture  1 

in bodyslide: picture 2 

does anyone know how i can get it to fit on my preset?