It sounds like it's out of adjustment.

A good rule of thumb to go by with Whisker Biscuits is this: Start out with the biscuit straight not tilting forward or back. Make sure your arrow is levelwhen it sits in the biscuit (90% to the string) Last make sure the biscuit is set up with a true centershot with the string. I set all of mine up that way including adjusting the tiller to even. At this point I start to fine tune. I have found that it doesn't take much adjustment from those basic settings to get it shooting great. No fletching wear....no noise.

Also make sure you have the correct size opening for the arrows you are shooting. You should see light all around your arrow except for the bottom where it rests on the black bristles.

Good luck