I just reviewed this post and it's way too long but I've invested too much time writing and linking pictures to delete everything.
Trigger length and shape are very much a personal preference. My trigger journey is described below.
I spent lots of years shooting USGI 1911s with standard short, curved, steel triggers courtesy of Uncle Sugar. When I finally bought my own personal, commercial 1911 I fit a long, curved STI trigger with an over travel screw. Shot it a lot with no issues. Time marched on and more 1911s began showing up. They each got the same long STI triggers.
Then I ended up with the one pictured below. It had a custom contoured trigger that was my first experience with anything other than GI short curved or long curved. I really liked the feel of it.
During the process of customizing this Colt CCO I fit another STI but this time is was a shorty and re-discovered the joy of short, curved triggers.
Finally, I put an
EGW short, flat trigger in a new build and was hooked. I like this trigger best of all. It has no over travel screw. Instead the rear of the pad has extra material that is filed down to the correct length to minimize over travel and I never have to worry about having a screw loose