I know that trigger pull can make a difference in performance, but I think it is way over-rated. If you can hold your gun on target and not move the sights when you pull the trigger, you will hit the target every time. A light trigger or smooth trigger minimizes extraneous movement of the entire gun a bit, but for something like combat handgun shooting, I think it is not that big of a deal. For high power or target shooting a good trigger helps mimimize movement, but I don't think it is the be all and end all. Thats my humble opinion.
JM