Many of us use Poly yarn as a substitute for hair wings. I frequently note comments that the more "crinkled" Antron or Z-lon is better and even that Z-lon is better than Antron because it does not mat down when wet.
My thought is that the mattig concern would be eliminated on the first false cast.
Completely overriding this is the fact that both of these materials are Nylon, where Nylon is more water aBsorbant that any other popular plastic. Poly yarn (Polypropylene), will aBsorb no water at all but will aDsorb water between its fibers. But these also, will be gone with a false cast.
Which material is to be preferred?
I'm interested in comments from you other guys.