heshtesh, one other thing I would mention is the way I set the lash. If you are shooting for .020 setting, (arbitrary number), I use a .019 and .021 feeler guauge as a go and no-go. .019 goes easy and .021 will not go, gets you right on .020. I guess I have been a machinist to long to just set it with the size gauge I am shooting for.
Curtis