Raise Your Body Upright
Mechanism / Why It Happens
Your body axis is still leaning like in a Frontside turn. This can also be useful as a transition between tricks.
A Slash Grind is created by leaning your body axis toward the inside of the ramp, just like a Frontside turn, so that the trucks barely scrape the coping at the top of the turn. If you want to do a Frontside 5-0, you need to push against the coping with your back foot while straightening your leg, applying pressure to the coping, and bringing your body much more upright. That said, a Slash Grind is valuable in its own right. When you don't have enough speed to commit to a full grind trick, it works extremely well as a transition between tricks. Learning to do it confidently without fear is never a waste.
What to Do
Push mainly through your heel while straightening your leg. Use your heel as the pivot to bring your body upright and lift your center of mass.
Up until the approach, a Frontside 5-0 and a Slash Grind are almost identical. If you're aiming for