Fixing up an outfit in a modeling program is a good solution, but I just picked up a NEW set of Auto-Fit templates that really help. Check out the following item over at DAZ.
Wear Them All - Autofitting Clones and Clothing Smoothers for Genesis 3 Female(s)
I have used the SY templates while moving through the G1, G2F cycle, but this new one is much better. It is not perfect, but the problem with this specific issue are greatly reduced.