Whether the hackle’s trimmed or not, floatation won’t be an issue.
hook - Dai Riki 075 #8
thread - Danville 6/0 brown
core - 15lb mono
tail - golden pheasant tippets
body - 1mm foam insect green
wing - calftail white
hackle - brown
Sorry, just the final version on this one; pretty much the same as the Stimulator, without the body hackle. I think it would look better tied on a scud hook, though.