There are a lot out there I just wen to a local proshop and told them I was upset about my tubing breaking all the time they told me the same stuff I told you and they showed me like 10 sights that went on without a tube. You cant do it on a new string it has to be streched and al rested into place so that the peep will not turn on you. If you are using a string loop thing willl also help you center the peep when you pull back.