I picked up enough fast spinsto do three bolts today at archery shop. If they group OK at 20 yds, good enough for me. It was afellow at Arizona ez fletch toolthat recommended them to me. This is my first cross-bow, a low priced Eagle, 180#Taiwan made steel limb job, but it's accuracy and light trigger pullsurprised me, even with the whimpy bolts it came with. What I like is the fact it's limbs fold back, and it is short overall, so I can stick it in a day pack.