Indeed, drilling the holes accurately and leaning a bit backward makes all the dfference. That precision was lacking in this case, and the tapered tips did not help in this case, which is why I'm changing them for straight ones with only a light chamfer.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Note: opinions expressed on HPSCHD-L are those of the individual con-
tributors and not necessarily those of the list owners nor of the Uni-
versity of Iowa. For a brief summary of list commands, send mail to
[log in to unmask] saying HELP .
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::