Interesting. I just went through this when I bought a G34.
I can put a 2# trigger on your Glock with no pretravel. No creep.You can use it for bullseye or USPSA. Too dangerous for anything else. You cancel out the firing pin safety and the "dropped gun" safety when you cancel the pretravel. I set mine up for IDPA. 2# trigger, usual pretravel. The tune up takes most of the resistance out in the pretravel and the remaining pull distance is not over two pounds. Mine has an over travel stop also.
The trigger bar performs couple of functions. A "tab" sticking straight up on the front of the trigger bar is slanted and as you pull the trigger, it raises a solid small cylinder that is grooved. At the point of firing this groove is lined up so as to allow the firing pin/striker to travel to the primer. At the same time a "tab" on the cruciform (the rear of the trigger bar.) rides in a slot and at the time of firing, the slot is cut away from the bottom allowing the sear/crucifrom to drop away from the striker and the firing pin zooms forward. I looked for every way possible to accomplish what you want.You would have to re-engineer the trigger bar to do this and you still may do away with a safety.
I, too, have some 1911s. A couple have 2# triggers, no creep, glass breaking. After some practice you learn to take up the slack and on repeat shots, you "ride the reset".
Find out different let us know.