I talked to Guy Neil at Speer a couple of years ago about "reclassified" ammo (this was 9mm +P Gold Dot also) and he told me this simply meant that the VELOCITY of the round was not up to spec for the SPECIFIC CONTRACT in question. So, I don't know that I would question whether they were "not recommended" for carrying. Just because the velocity was only 1200 fps, rather than 1250 fps doesn't mean the ammo wasn't good.
Speer also replaced several boxes of .357Sig ammo that suffered from bullet set-back very satisfactorily for me. They are good guys and stand behind their ammo.
I've bought 2 cases of the stuff from Milwall at $8.00/box of 50. Bargain ammo, excellent ammo and have shot about 200 rounds with excellent accuracy and no problems whatsoever. I carry it in my P99 every day.
FWIW.
James