Researcher, do you have any information indicating that the 10ga frame failure in question was more than a "one off"? I wish I had more information on Greg Tag's Flues failure research. All I have, unfortunately, refers to 8 reports that he had collected as of Aug 1998. But I (and am sure others) recall more detailed discussions of multiple failures occurring in lightweight 20 ga guns.
Maybe someone more skilled than I at searching very old BB posts on the subject can come up with more specific information on Flues failures with reference to specific gauges. Unfortunately, we didn't have anyone back then taking a very detailed look at failures such as Doc Drew has done more recently.
