Kyle of Aggressivemall teaches you how to land an acid grind with aggressive skates.You should first go to your favorite curve to practice it as a stall. When doing an acid grind, your soul foot (or the one you use for balance) is placed along the grind bar and the other foot is placed like in a backslide. Once you get comfortable with the stall, you can start practicing the grind itself. For starters, you should approach the grind bar with a slight angle and moderate speed. While grinding, bend your knees and raise your arms for extra stability. Do not look down to your skates, because you might fall in front. Always look a few feet ahead of where you are. Once you get it right, you can also try variations of the trick.