Adjusting the creep is so easy, a caveman can do it. Install an adjustable take up screw, which limits the reset to the front of the sear engagement. It's exactly what most triggers use, aftermarket or even factory bolt action. If it doesn't travel over a bunch of excess sear, it's not gritty or creepy.
Reducing the pull on a field gun should be reconsidered, handling a light trigger in rough terrain or getting hauled up into a treestand is exactly the point of the 5# pull. In the AR, the mechanics of leverage means it's the hammer spring that gets lightened or clipped, which directly affects the amount of impact the hammer imparts to the firing pin. Light springs mean light strikes, and hard military primers don't react well. Civilian loads with softer primers then become more prone to being sensitive to the non captive firing pin striking them when chambering. It's a delicate balance in a specific operating window, made particulary for military use. It's not like a typical civilian gun, and needs to be considered in it's specific design.
I recently assembled an AR15 with adjustable trigger screw and stock military springs, and when the opportunity for a shot came two weeks ago, I never noticed the pull. I DID notice the lack of creep, and that I still missed a jumpy deer at less than 20 friggin paces ....
There's more to it than a trigger can help, apparently. Don't let the precision range guns mandate the technology for a live target weapon. Two different jobs.