Hi, bohning makes a powder called feather dri to water proof your feathers that works really well i have been using it a few years, and also feathers do stabalize arrows alot faster than vanes do, and the arrow fletched with feathers starts to slow the arrow down faster than vane fletched arrows after 40 yards so in hunting the longest shot is usually between 20 and 30 yards where the speed is really no different, with feathers you will have a straighter shooting arrow in that distance.