If it is an ML you can just sand the forearm along the barrel and at the ears of the forearm so you take out all the contact points. This worked fine for me and tightened my groups right up.
I know people that have no issues with their encore, but others that do. A friend had the same issue as me and the tape fixed it. Then we put a 1x Bellm pin in and now it?s fine without the need for the tape. The pin stays in the frame and never moves. I think my main issue is my barrel. I think it has a pin hole that is smaller or out of line with my frame. Maybe it?s not square. I don?t know. It tends to turn the pin in the frame, but it is not so tight that it will keep the pin in position in the barrel. All is well until it takes a turn. I have marked my factory pin and frame and the Bellm pin is marked. I can shoot tight groups no problem as long as the pin stays in the same position. As soon as The POI changes I check and sure enough the pin has rotated to a different position. It would seam to me that this would not make a big difference. I really can?t figure out why it would affect POI, but it does or at least I have convinced myself it does. I have no forearm contact and consistent bench technique. My QLA is straight. The only variable I can find is the pin and it consistently makes a difference. For most people 2? or 3? groups are fine, I just don?t happen to be one and when my POI moves 2? it bugs me.