Here is the fly pattern sheet for the Quigleys PMD Hackle Stacker fly.
Materials
Hook:
Daiichi 1180, TMC 100 or Dai Riki 300, size 16 – 20
Thread:
8/0 light cahill
Tail:
Microfibbits – light dun
Body:
Superfine PMD dubbing
Thorax:
Superfine PMD dubbing
Hackle
Light dun
Here is a terrific Youtube video from Johnny Utah. It’s the best technique I’ve seen for creating the parachute loop for the Hackle Stacker.