Can anybody speak to the quality of the Beretta 92's trigger? I hear people say that the single action trigger stacks, and that the double action pull is very long and heavy and will throw your first shot off (is it any longer and heavier than a DA revolver?). I am thinking of picking an Italian FS model up, but I've never had a SA/DA auto before, and I wouldn't want a pistol that would make it hard to learn the system. Thoughts?