My I suggest that if a shooter who switches from a DA/SA gun to a Glock might appreciate having the exact same results? Isn't a consistent trigger action preferred rather than training with one and carrying with another?
Also, I think what might be getting missed is that the NYPD is issued 10 pound triggers. With the usual range of fit, there are plenty out there pulling 11 1/2.
Take that pistol and put in Mas Ayoob's hands, he can win a National Championship, and did, just to make the point - trigger weight is not a reliable way to make your gun more accurate, unlike all the race gun proponents who think it is.
My take on light target triggers is that if you are pulling it thru like you are supposed to, you don't know exactly when it's going to go off - just that it will be on target when you do. Adding a light trigger to a defensive firearm? Somebody is snatching it when the bobbling sight picture is close, and having a light pull throws it off less, that's all.
Bad technique to start with. If you think you need a heavier trigger, then better you install the 10 pound link and have a consistent pull every shot, instead of having to learn the compensating behavior necessary for DA/SA, which has been remarked on by better shooters than me.
A long series of posts saying "This is dirt stupid" doesn't really illuminate WHY it might be dirt stupid, or, actually work. All this device does it make it feel like it's DA/SA. Tens of thousands of guns are sold to do exactly that, it's obviously NOT a problem for those buyers.
Somebody who might actually own on of these, please chime in. I get the feeling it's like the Versacarry, instant dislike from the vocal crowd, thousands are stocked in stores, get sold, and are being used anyway. Hmm. While marketers certainly have produced items that only seem to generate cash sales as their point, in this case someone who wanted a DA/SA trigger pull on a Glock, which IIRC is impossible to purchase, can now get it.
What might be next in line is an actual DA/SA Glock. If this sells, then it's a great way to measure that demand. Sure, it's a "fake" DA/SA, but if you do use and carry them, but want to carry a Glock, it solves your retraining needs very quickly.
I see it less as a high trigger effort "gun safety" item as simply providing a more seamless range of carry guns that all act the same. If your duty gun was a Beretta M9, and your BUG was a Glock 26, it would help.
If you are already carrying a ten pound trigger, then the heavier one certainly adds more. And if you are snatching the trigger, it will certainly slow you down to stay on target. I could even see ol Mas shooting one just to make it a point again. Some people raise the bar to improve their skill level, not lower it.