This is my go-to intruder fly. The front portion is tied in reverse, meaning less material and a bigger profile. This fly casts very easily and sinks quickly. I can customize in a variety of sizes, colours, and also different weights, from lead eyes to tungsten beads hidden in the body of the fly. I use crystal flash for back station to create a hotspot.
This is one of my "must-have" flies. This fly simply gets it done