Hi Jim,
The lead diameter and hole diameter may be too different. However, Iwould be
even more concerned with the temperatures that the PCB reaches for this to
occur. This manual soldering may destroy the structural integrity of your
PTHs, particularly causing innerlayer separation.

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 904-437-8747, Fax: 904-437-8737
E-mail: [log in to unmask], Website: www.engelmaier.com

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