Howling Rat Little Mischief : Howling Rat part is obvious. The Mischief handle (Think M6 handle) was named after the "RAT Mischiefs" being held in the PNW (or so I have read here). A RAT Mischief is a gathering of RATs. The "little" is in reference to the HR handle being smaller than the handle on the M6 or Mini Mojos.
I think the fact that this thread continues on the Yard and has died (or slowed down) on the Swamp says volumes.
Ron Athay