First you would have needed to mark where your cam, cams, were in relation to your limbs or other measurements that you could use as a referance. If you didn't do this and you know for sure that it streched only 1/4 of an inch then put it in a press so you can remove your string and add about 5 - 10 twists to the string. The number of twists will vary depending on how long your string is. The longer the string the more twists you will need to add.