Wow....bright colours. Personally I had thought such were better for salmon..fab as you find them successful.I had gone for tone silhouette and fuzzy mass and straggly effect with my tying to bring up the sea trout from depths....as darker wet flies seemed to be used traditionally . Used calf tail fox various squirrel other hair for combo's of soft and firm definition and colour emphasis. I felt hair would hold air bubbles .Couple based on big deer hair bodies to suggest a big beetle struggling across the water. Maybe somone could tie similar and see if they work. Cheers.
I like the look of that puple one ,then i would !
One of our club members who is more of a sea trout hunter than me has the blue zulu as his go to fly.