I'm using up my rather large supply of Gink/Albolene. I treat the new
fly out of the box. It can't hurt (unless its a CDC pattern, in which
case it's a disaster). After that, I use Frog's Fanny/Cabosil TS720
(treated, hydrophobic fumed silica). Gink and its imitators don't work
when the fly is wet, and especially not when the fly is soaked with fish
slime. I wash off a slimed fly and treat it with copious amounts of
"Frog's Fanny." It floats to beat all get out.

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Cut "to the chase" for my email address.