Gene, I agree, the original pattern of the X-caddis was about 2/3rd of a standard EHC. But that is not how it was predominantly tied as it gained popularity. It was tied very short, and fished as a Mayfly emerger. The spitting image of the newer version that Byron just posted. It was very popular as a PED Pattern on the Yakima throuhg the mid 90's. That and the "Hairwing Dun" which included a turn of hackle as well. A short wing, creamy olive rabbit body and a few sparse fibers of Rust antron yarn.