I thought I recall a previous post on it as well? My two cents for what its worth; I used to use he feathers and my one complaint was when it was raining or wet out the feathers got ruffled a bit and I'm quite certain it would have impacted my accuracy...I switched to vanes after that.
My thoughts as well. Last year was a wet one. I got real tired of drying out my feathers every time.
I got real nervous when they got wet while on stand.