[LunarBerry]

I've shown this image before on another post (the link below) and still think this is the cutest cut. This isn't my yorkie girl but I had wanted her to have this sort of cut. Since you're keeping yours on the longer side, perhaps the way the cut is around the face may work and leaving the body. I keep my girl's muzzle short like this pic and it's helped with make cleaning her face and keeping it cleaner easier.
http://www.yorkietalk.com/forums/att...48fcb53851.jpg
This may also be an interesting suggestion, but have you tried to use coconut oil or some sort of natural "smoothing/anti-frizz/shine" serum? Something that you would apply after the bath or after she dries. That should help keep her hair a bit more manageable and a little more neater looking.