This is a video by my friend Seth Manoach, MD. He has been an EM Physician for many years and now is in the midst of a three year critical care fellowship sojourn.
This video demonstrates the fiberoptic stylet-aided cric. In this case he is using a Levitan Scope, but an adult bonfils or any other rigid fiberoptic should work fine.
The airway he is using is the Melker cuffed cric catheter, but I have tried this in trach incisions with 6-0 ET tubes, and 6.0 trach tubes as well.
Here is the article seth put in the literature:
Resuscitation. 2009 Sep;80(9):1066-9. Development of a rapid, safe, fiber-optic guided, single-incision cricothyrotomy using a large ovine model: a pilot study.
Please note: The sheep in this video was treated with the utmost respect and ethics. It was heavily sedated throughout with tons of thiopental plus ketamine and xylazine.