I wondered if anyone else had the same problem as me? If I shoot from the 16 I get used to it and shoot pretty well usually scoring a 23 or 24. Then when I shoot from the 27 I can't hit jack until I've shot several rounds and then I'm back to the low 20's. If I go back to the 16 I'm back to shooting 15 or 16 until I have a few rounds under my belt then it's back to usual. I can never seem to get the two together. I shoot for the fun of it, not any registered, but it's frustrating just the same. LOL Any suggestions appreciated. Jackie B.