Just got off the phone with David from Smith & Wesson's Customer Service. My 625-10 is currently at their "metals shop" for engineering examination to determine as best they are able just why the gun failed as it did. David thinks I should hear further - possibly late (there is this Global Warming Infestation currently under weigh in the general Northeastern region) - next week. I'm looking forward to discovering S&W's proposed resolution along with the reason for the failure.
More to follow, as the saying goes.