RE: Drop Away Rests
I put a whisker biscuit on my bow this Spring and shot it up until this week. Like you, I found that it was hard on feathers and vanes. And I wasn't satisfied with the accuracy, range and noise compared to my previous rest.
I had a diamondback dropaway put on this past Monday. The difference in accuracy and overall quietness was evident in the first few shots. After shooting these past few evenings, I am convinced I made the right change. I will definitely put a dropaway on my other bow.