Favorite water type to fish it in?
You can fish this fly in waters that are "steelhead green," to clear in color. If the water is green I prefer the darker orange/red version. If it's clear water I'll grab the light pink fly.
What river or water body was this developed for?
I prefer fishing it in rivers that drain directly to saltwater, though some guides have had success swinging it in the Great Lakes region.
What techniques do you recommend for this fly?
I tie this on with a non-slip mono loop to allow for maximum wiggle while swinging. I fish it on a 4' to 6' leader with at least 16 pound test tied to a sink type that matches the river. Generally I'm using a 10 or 15 foot tip of T-8 up to T-14 depending on the water speed and depth. My preferred rod is 13' to 13'6" spey set up.
Another trick I use when pulling a new fly out of the box is to brush mud from along the bank all over the fly, and then rinse it in the river. This helps to "break it in" so it's not holding air bubbles, and sinks immediately.
Anything else you'd like to share?
Steelhead are sometimes nicknamed "ghosts" due to their ability to hide and only be seen by some. The name of this fly came out of that idea. "The Ghostbuster" helps you break the code and find where the fish are hiding.