50 years of self-taught bashers, technical wizards and more — I still remember the day in seventh grade when I first met a couple of real-life punk rockers. As a SoCal hesher-in-training (feathered hair, lightning bolt necklace, checkered slip-ons, etc.), my exposure to bondage pants, Dr. Martens boots, and spiked hair was extremely limited up to that point. I was…