ucfd_cyclist,
I would refer you to the quotes in my SIG.
The question is almost never hardware- it is SOFTWARE. The issue is getting hot lead on target, and that is almost totally an issue of training, skillsets and self discipline, not one that is hardware dependent. Any person who will fumble a pumpgun under stress is just as likely to fumble a semiauto- I know of far too many instances, for example, where a person groping under pressure for the safety on a semiauto pistol has instead hit the magazine release. Not as likely with shotguns as handguns, I know, but illustrative of the problem nonetheless.
It is IMHO a disservice to any budding defensive shooter to offer hardware as a panacea, as a substitute to training and practice and developing skills. The idea that one can, as sm/Steve so often puts it, "buy skills and targets" simply by purchasing a different sort of gun, or some different accessory or other to bolt onto an existing gun, is anathema to me.
We will simply have to agree to disagree on the matter, it seems.
Regards,
lpl/nc