Hi. I am having a bit of a problem punching thin stock. Everything goes according to plan until the end. I hit the punch from one side, see the "rosette" on the other side, then hit from the other side. The second hit does not seem to do anything. It seems that the problem is that there is not enough displacement on thin metal to cause the round wafer to shear off. It still is stuck, and there is now a "rosette" on the other side. If I put the piece over the pritchel hole and strike, the wafer comes out, but there is a problem with deformation. Is this just the way things work?