This is a great article from Loren's website, flyguysoutfitting.com. His concept of micronymphs is different, not what I thought it was going to be from the title- it goes way beyond "small nymphs". I'm hoping we can get Loren to give us some dressings for his favorite versions of this- one of them is on his site already, the "Red Devil", check under the Fly Tying Tutorials.
http://www.flyguysoutfitting.com/micronymphs.html