Re: 40 S&W Super Powder?
There might be good reasons why those load recommendations were pulled.
Published loads are tested in a locked breech pressure barrel and provide some interesting ballistic data, but pressure barrels do not have reciprocating parts that are designed to function within a specific pressure curve. When the Lab Rats pressure test those loads, that factor is not necessarily taken into consideration.
A pistol can be built or modified to function at the ragged edge without problems, and slower powders do have a big advantage if the goal is to maximize the amount of pressure through the compensator at the end of the barrel while keeping chamber pressures reasonable.
Those type of loads that will run perfectly fine in a custom pistol 24/7 can be disastrous if fired in a stock pistol. I'm not saying those Enforcer loads are unsafe, and it's useful info to have if you want to run those loads in your race gun, but outside of the world of competition I would question what benefits are to be gained.
A powder in a faster burning range is a better all-around choice for general use in a stock pistol. The fast-medium burning rate powders provide adequate velocity, recoil less; adding to the shoot ability and multiple hit potential, are easier on the brass, less wear and tear on the pistol, burn cleaner, etc..
TC