I just put a No peep on my bow a few weeks ago and my groups are the best they have ever been. As long as your coming to the same anchor everytime the no peep should be lined up and you should shoot really well. If it has not been bumped out of place and your coming to the same anchor everytime I see no reason for you to not shoot better groups. Is your bow tuned? Checked for clearance? Are you comfortable with your draw weight and length? Since you've just started shooting I would think your groups will improve everytime you're out there. Practice, Practice, Practice!!!