Ok so I've signed up for TPC's Competition Handgun Mastery course this weekend and, given the cost, I want to make sure I get the most out of it. Could anyone who's taken this course or similar fill me in on what they wish they had done to be better prepared? The plan is to use my open set up, but would I be better served to shoot iron sights for some reason? I've picked up some initial tips from their videos, and will be doing plenty of dry firing and stance stuff with them in mind. What else can I do to make sure I hit the ground running?