After shooting my buck Saturday night, I didn't find my arrow right away but was not worried because the shot was 16 yards and I saw the impact. The arrow went in right behind his close shoulder and exited through the far shoulder. Recovery was about 100 yards. Any way, I found my arrow Sunday morning and it was perfectly clean. If I had found my arrow first, I would have been convinced that I missed. There was nothing on the shaft or vanes. Since I started using a crossbow, I have noticed several arrows having less sign on them than I would expect but none have been perfectly clean. Has anyone else had this happen?