For those of you who gave serious answers, thanks. I realise that it is pure speculation with no real way of knowing either way. We were discussing the 1911 vs the service size revolvers. I chose the Model 10 and Official Police because they are were arguably the two most common revolvers of that type. The discussion kinda got around to which one is the more proven design and I guess that my personal opinion is that they are probably equally proven. They've both been around for over 100 years and are still alive and well.