Even if this is the case (which I don't know whether or not it is), then they should have had equal ND incidence when training new recruits on the 92F. Were new recruits learning on the 92Fs having a similar rate of NDs as when folks transitioned to M&Ps? that would also be a valid data point. Somehow I'm guess the incidences after adopting the M&P caught the inspector general's attention because they had never had such a high rate of NDs prior to the M&P. That tells me it is easier for people to screw up on a M&P than on a Beretta - I know the opposite conclusion is popular on the internet (de-cockers/levers, too complicated, etc).