I have often wondered if a flat faced trigger wouldn't help with the all the "shooting left" that people experience as the curved face of the OEM trigger could easily induce the shooter to have an uneven trigger pull instead of a straightback pull. However, as far as I can tell, most, if not all, the flat faced triggers available on the market also do things to the internal geometry of the trigger system so that they are, at worst, unreliable if not dangerous, or make the gun just way too easy to shoot and not carry worthy in my opinion.
I came across the following video today and they claim to leave the innards totally OEM. They claim that the changed geometry of the trigger shoe itself produces a smoother take up and a shorter faster rest. I'm a little dubious about these claims but I am no engineer and if the internals are truly unchanged this trigger might just be interesting.
Watch the video and post your opinions: