I think, but you would have to verify, Don from SFOTF incorporated the UV ice dub in his latest versions of his Prince Nymph variants.
I recall him using purple and black UV dub in his patterns that have proven very effective in rivers like the Columbia and BC lakes. Go to Don's SFOTF website to see his work.
I think you can confidently use that in all patterns requiring dubbing. Having said that thee are so many times that the very dull, no-flash earthy toned dubbings are what the fish want.
Gotta tie everything it seems to keep up with the top rods. And yet the top rods seem to only need a very small selection of patterns to be most effective.
That's probably a big reason why I'm not keeping up with top rods, I'm tieing knots changing flies while the top rods have their fly in the water catching fish.
. Maybe one day I'll figure it out.