As we are not limited by FMJ rounds the Beretta is a fine defensive piece. I like 147gr. bullets, but as long as the JHP is a solid design of the proper weight, it should be an effective round.
Well, yes. I do carry JHP's, usually 124 grain Federal Plus P. I feel better with them, unless exceptional penetration is needed.
But in Iraq, my son had to use FMJ GI ammo, and nine insurgents still dropped. I think he had to shoot one at least twice, but the first hit was to his legs, fired at the man while he was running on the other side of a truck trailer. That was to drop him for a finishing shot or two.
In fairness, my son said that he would feel better with JHP's, but that just wasn't an option. On one tour, working as a contractor, he thought of carrying a .45 auto, but spare mags and fresh ammo for the 1911 were in short supply. Of the available handguns, it came down to a Glock 17 or a Browning Hi-Power, I think a MK III. He prefers the Browning, and it did well by him, killing three of his pistol-slain enemy. The other six were casualties of an Army-issued Beretta M-9. (All on different occasions.) All of the M-9 stoppages that he saw (none his) were due to poor maintenance or to bad mags.
BTW, the late David W. Arnold told me that while he was a senior Rhodesian police official, he saw 9mm's used and saw after action reports involving their use. The military ball load usually worked, contrary to what one reads. This assumes good placement. Arnold and his lot were dealing mainly with Bantu terrorists, some being pretty large men.
BTW, many believe that the Beretta is better not used a great deal with Plus P ammo, let alone Plus P Plus. That also holds for the P-38/P-1, the Browning Hi-Power, and some other pistols. I think that's likely true, and I carry Plus P mainly when defense is the need, whether against men or possible animal attackers. Federal's 115 grain JHP in their Classic load (#9BP) is standard pressure and has a good rep as a stopper, if well placed. Skeeter Skelton told of shooting a coyote with a Norma 116 grain JHP back in the 1960's and it ruined the animal's lungs. It was a quick kill, using a Browning. Skelton was impressed. Today's better technology offers more consistent results, I think.
I feel well armed with a good 9mm and the right ammo, but knowing that even GI ball bullets will often suffice lends added comfort. (I do know that some soldiers report less satisfactory 9mm results, but I don't know where they hit the enemy, or at what range.)
In Afghanistan, we are fighting the very people whose resistance to pistol ammo led to the British developing their Manstopper .455 loads. There is probably some truth to the accounts of smaller calibers failing often enough to be a concern, as we experienced in the Phillipines, against Moro fanatics.
Your "quote" above jumbled some of my words with someone else's. The point that I made about the M-92FS grip having a slight recontour is in the version having the slightly slanted dust cover. Unless you look carefully in photos, you won't see the difference, but it's easy to feel.
I read on the Beretta board that the only reason those slanted dust covers were used was to add strength to the M-96 version in .40, which has been dropped. Word is that the straight dust cover has resumed for all 92 variants, not just the M-9 and its commercial version. I don't know how this will affect supply of the contoured frames that I mentioned. Beretta seems to be limiting news about any changes in the basic gun. The only thing that seems set in stone is that US contract deliveries will not vary, as they are made to the contract specs. That includes the grip shape.