So Ewolf are you saying that you are the 1 guy on the planet who just hunts with bare shafted arrows? If not then why not based upon your above statement? A wet matted feather does not share the same rotation and steering properties or weight and drag as a fluffed out erect feather so if you are seeing no change at all why not just eliminate fletching altogether and save the drag entirely?

You have practiced with waterlogged feathers to determine group variances and accuracy changes or are you just basing it on an "If"?

Curious, because I too can tune a bow just fine and have found that matted feathers are a crap shoot at any significant ranges. Theoretically if all the feathers are affected by wetness to the same degree group size should not be affected significantly vs a dry batch, but you're saying they should also shoot to the same point of impact everytime regardless of wet or dry?