Ray,
I've never had a problem with Antron wings soaking up water, but then most of mine are parachute. If it's soaking up water try a little mucellin. I've been using it as a fly/leader floatant for years with no complaints, fry flies float like corks.
Have you tried calf body hair for wings? Straighter than calf tail, stacks easily, posts up nicely.
REE