Sorry, tired and probably missed it. I don't know which needs chainging V3, or the clothing. Generally if a clothing item does not contain a certain morph then when the model uses that morph strange bizzaro things happen to the clothing item, pop outs breaks weirdness. so if you change V3 to BreastSize6 then this sleeveless shirt should conform to that because it contains that morph. but if you changed V3 to say some rediculious number to get Vicki in a temple, then maybe that's where the breast popout is occuring. again, I don't have the product so I can't claim to know, but I hope someone that has bought it can post a messege stating how it works etc.