Just a couple of random thoughts.
Why dial up a female character to 100%? Why not just dial the V5, Hitomi or whatever to 50% and then use the Breasts Small to shrink them even further? You can dial them down to flat chested without deformation. If you want more definition in the waist and thighs just play with those dials.
Which brings up thought 2. Why not just dial Breasts, Waist and Thighs on the default androgenous Genesis? 3 quick dial spins and you’re well on the way to having a small breasted woman shape.
The problem I’ve noticed with this is simple, I had gotten Hitomi as a special giveaway. Now when I applied said bundle to Gensis, tweaking body pieces seemed to deform more than the mesh. The Dials do work on the Base Platform, but without much effect from me. Either limits arn’t really applied or I’m doing something wrong.