As much as I love my AI, the stock trigger sucks donkey balls. Before buying my axmc I had checked out a friend's AT not realizing he had a comp trigger. When I got mine I was so confused as to why it had so much overtravel and was super heavy. Installed a comp trigger, adjusted it to my liking, and love everything about AI ergonomics and operation now.
The over travel exists so that if debris gets into the sear it will still function.
The Comp triggers are (or at least were) garbage and were constantly failing when they were released.
The AI trigger is meant for hard use and was never meant to have the 1lb pull that people seem to think they need on a "tactical" rifle.
A 5lb combined pull is not "super heavy"