I have added a Loop and new badger rest, new cables.. shoots much better, I use a scott release. I can now make shots to 35 yards with the confidance of a 20 yard shot. This is on a Golden Eagle Evolution Pro.@ 55lb. about five years old. I had a plunger type rest before and tryed fingers..forget it..Also Without the loop there is pressure aginst the nock and may cause problems. Many just learn to correct this by diffent habits. This is not correctting the problem. a proper made loop should not affect arrow length. I have found that a new anchor point may have to be found. and it ended up being more comfitabile. Change your loop every year! Its cheap and safe.