I don't think that's a good idea because they do not penalize shallow torpedo depths (which in reality would not be possible because this would result in surface runners). In addition, they don't include the fact that real commanders did not know about the problem's roots. I think the main advantage of looking at the SH4 file is that one understands the current model. For instance, the file clearly shows that you can have a failure rate of close to zero by using the impact pistol in SH4. And it helps us to estimate the premature rate for the magnetic pistol
