Please be patient with me, as this is the first handgun I've owned. It's a S&W M&P in .40 cal. 1) The trigger feels like ass. It's way too heavy for my tastes. Do I buy parts (or a drop in trigger) or send it to a smith? 2) I know the trigger is partly to blame, but I jerk that thing all over the place. Should I be doing exercises to improve that? Sources? 3) A nearby shooter was shooting a 10mm and vaporized a wandering deer with one shot. Should I be jealous?