You could try the easy solution of course: In the body properties of the clothing check "include scales". This will fit the scaling of the conformed figure to the figure it is conformed to (Stephany 4 scale morphs work fine).

There is one exception - some clothing (like 3D-Age) has their own scaling fitting morphs, in this case you have to set the Include Scales off.

This from a long time user of the S4 scaling morphs