I think at the end of day, the curved trigger feels more natural. To a shooter that is fairly particular, the flat trigger may be distracting, while shooting. Different feel, and the flat has a longer "feeling" pull to it, as opposed to the curve gaged at the same pull weight. I actually like the look of the flat trigger, and find myself using the very bottom piece of it that angles out, instead of using the longer straight part of the trigger. I could stand either one, but again, if you are a particular person, the curved may be more suitable. I would definitely fire from something with a flat trigger, before I purchased it, and it, and didn't like it or couldn't adjust.