Hi Cyan, I am glad to help if I can.
I am not sure if I completely understand your question. Are you wondering if it's OK to wear more waist defining and skimming tops with skinnies? If that's the case, than I'd say it depends. For example:
1. If the top in question is long, like tunic, than by all means go for it. Most of my tunics are shirtdresses, and they are not voluminous at all, quite body skimming in fact. Here are two photo's, in the first one the shirtdress had a wide belt, very waist defining, in the second one the cut of the tunic itself is such that defines the waist due to the waistband:
http://s300.photobucket.com/al.....CN2939.jpg
http://s300.photobucket.com/al.....CN2971.jpg
2. For shorter tops, I do prefer the layered silhouette I described in my first response, such as this:
http://s300.photobucket.com/al.....CN2860.jpg
I even wear tops that are not swingy at all, like here:
http://s300.photobucket.com/al.....CN2907.jpg
But with short tops I would not wear something with skinnies that's very waist-defining or tight fitting. So wouldn't wear my favorite wrap tops with them, or say, fitted turtleneck with wide waist-cinching belt. Those are great with bootcut jeans, but with skinnies I end up with a look that's tight all over,which emphasizes the big difference between my waist and hips. That makes me feel like a caricature of an hourglass.
I think that it is great guideline for hourglass to emphasize her waist, but that it can not be applied to every single type of outfit, because sometimes it's not flattering.
Now please tell me that I've understood your question correctly and that I haven't written all of this for nothing