I was about to go all 'Smoothing Modifier!!" on you Erik, then I saw the Dynamic Dress part. 

The knee issue was a bit of a surprise, espeically on Genesis. Could be specific angle or the pose itself, but this comes from a devout Gen4 user, so ignote it :-) 

Love the sheer look on the dress, but much agreed, the rumples really killed effort #1. I haven't used Optitex in quite awhile, but when it works, it works well. If you want to repose (or animate), then its a gigantic pain in the a$$. 

Said my piece and shutting up! 

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