I've found in my experiments that you can get more detail from conforming clothing in the way of seams, butons, ties etc that droop and distort in dynamic clothing. So making thos parts that need to maintain a certain shape conforming but making the areas that need to be flowing into dynamic clothing is a definate plus. I've worked with simply making existing "conforming" groups dynamic and have found that the draw back is that the groups are still "linked" to the primary figure (figure 1) and tend to be "pulled" when the primary is posed, causing distortion in the dynamic. This can be used if the pose isn't too drastic. The best results are to create a seperate dynamic group which requires some editing of the .cr2 file. A good example of this is the fredie hybrid dress by English Bob which has a dynamic Skirt group "below" the hip group. Grab that freebie an look at the .cr2 file as a good example of how this is done. Here's an early pic of a dress I've been working on that uses this method.