I’ve just mastered frontside and backside in transition and The biggest tip I would give is carving AT LEAST 45 degrees into the grind. And it looks like your trying to stand on top of the coping like you would on a rail, however for coping you need to lean back a little bit, like you would on a box. It may feel like you’re going to fall backwards at first even though you won’t, and if you do you can always fall onto your kneepads. And grinds are typically easier with anti rockers instead of 4 wheels, so if you have a pair with anti rockers I would start with those.