Note that I never gave any advice either way as to whether a dog should or should not be bred, I do not consider myself qualified to give that sort of advice (though perhaps to people who read what I write might get the wrong impression) For final breeding advice go to see your vet. Maybe get a second opinion if necessary.
What I was doing was speculating, which I enjoy doing. Seems like the hip structure is not really a solution, that was just an example though, my basic thought was that you were up against a *physinomical* cause as a primary cause or at least a significant cause as opposed to a genetic cause. ie most or at least many of these cases are caused by the physionomy of the animal rather than his genetics. Naturally hormonal problems are a fairly obvious possibility (though hormonal problems again are not necessarily linked to genetics) and you can also have situations where there is a malformation or even an absence of the testis (though I doubt that dogs are routinely checked to see if this was the problem or if simply the testis ended up migrating to the wrong spot and never ended up in the scrotum, correct me if I'm wrong) Bottom line is: Eight years of experience working with the genetics of several species (Humans and rats as models, but also and primarily protoozooan parasites) give me the hunch that this sort of issue is not a primarily genetic one. There just seems to be an underlying trend to pretend it is (and it is quite possible for a statistical analysis to show up a "false" genetic correlation)
Enjoyed the discussion I have to say.
PS Didn't I tell you not to be sorry? You don't have to be sorry about being sorry either... and no need to apologize about your English I can assure you it is perfectly understandable and far far better than my german.
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