I came here to learn, and learnin's what I'm doing.
I ditched the tube peep, and in the process, because of my going with a shurz with a smaller opening got more accurate, and more quiet.
I put on some string silencers and my shot got quieter.
But it still stuck in my head that the deer were alert before the shot. Thanks to all your comments. Then this Sunday night I was in my treestand and drew my bow back to be sure I had clearance. It was dead silent out. My arrow drawing across my Whisker B sounded like fingernails on the chalkboard!! (For those youngin's, a dry marker on the whiteboard) I had gone to carbon and a new biscuit this summer, and never realized how loud it was. My heartbeat must have covered up the sound to me on my shots.
I'm not willing to ditch the biscuit, so I need to quiet it and the arrows. The methods I have googled are: a cotton ball drawn through the opening, and steel wool on the arrows to smooth the finish. I am open to other methods incase these don't calm the noise.