Where did you read that the gun is designed to "auto forward"? I know some guns do this but I DO NOT like it and it has been documented where some guns that do this can and have failed to chamber a round.
I'll agree with you that I've never seen any user's manual or owner's guide that say that a gun was designed to "auto forward."
That said, many (perhaps almost every} high level competitive shooters relish that behavior in their guns, and many of them work on their guns so that the slide "auto-forwarding" is a counted-on function.
I'll stick to training with the slingshot method.
If you really must have the gun behave this way I know some have reconfigured their slide stops to encourage auto forwarding.
That is not what many being trained nowadays are being taught to do. Ditto the U.S. Armed Forces.
The U.S. Department of Defense changed its handgun training in 2002 or 2003, when it started getting reports of problems in Afghanistan and Iraq with "slingshoted" guns not oroperly going into battery under combat condition. If the didn't go into battery, you had to slam it forward or rack the slide again. Racking the slide again using the slingshot method could leave you with the same problem.
The Department of Defense apparently now teaches shooters in handgun training to use of the slide stop/slide release (use the term of your choice) to let the slide go forward. Kahr also warns against slingshotting, noting that with a Kahr weapon, it can cause feed issues.
An acquaintance who was an instructor for Special Ops troops at Ft. Bragg tolc md about that change in the handgun training program.
Part of the problem may have been due to the fact that many of the shooters were wearing gloves, necessary because of the harsh environment (hot or very cold, and sometimes very rocky.)
It was once argued that slingshoting was a gross motor skill, while using the slide release was a fine motor skill, but they've since found that BOTH methods take more attention to detail than previosuly thought and both are, arguably, fine motor skills. But so is aligning the gun on the target and pressing the trigger if you expect to hit what you're aiming at.
You can use several fingers of the off-hand (together a bit like a claw) to press the slide release/slide stop lever as you push the magazine into the grip, and using THAT method allows the shooter to keep the gun UP and pointed at or near the target. Slingshoting (if by that term you mean grabbing the rear of the slide as you would a slingshot pouch and pulling it back and then releasing it) forces you to move the gun a lot more (and farther from the target) than other methods, and it can also be slower.
Some shooters use the hand-over method, putting their hand on the top rear of the slide and pushing/slamming the slide back forcefully as a way of releasing it, and that can work very well with many guns, and like pressing the slide stop, allows the shooter to keep the gun up and on or nearly on target. (The Department of Defense didn't teach that method because the handover method often decocked the Beretta/m9 service pistol.)
