Was really close to learning Fs slappies the other night. My main problem is that when I get my front truck fully locked in my back truck stays on the ground, or if i manage to get both trucks on the curb I kinda do like a sideways type grind where I'm grinding with both trucks but I'm leaning away from the curb too much, instead of actually standing on the grind, and I fall off after only grinding for a split second. Gonna try to go back soon and work on them. Luckily I live right next to a plaza with some amazing red curbs.