From Tim:
I just posted my newest YouTube fly tying tutorial, a Czech-style Hare's Ear intended to be fished in fast water. This is a larger pattern (sizes 8-12), and one I classify as a "guide fly" due to its ease of tying. There are many options that can be added to this fly, as mentioned in the video. Featured in this tutorial are the J100BL jog style hooks; perfect for Czech-style flies because they help to prevent these heavy patterns from getting snagged on the bottom.