I've never learned slappies, for me it feels like riding against something and hoping for the best, possible slipping out and just dying. I'd rather skate a knee high ledge or rail because I know exactly how my trucks are going to land on it and grind.
Using so much force by smashing into it, while still controlling the movement is something I don't understand. The closest thing I can do is a wallie.
I wish I could slappy feeble, must feel awesome
This is what slappies look like to outsiders, smashing the board into the curb, but it’s actually quite a a lot more subtle and low impact. In fact, they can be quite delicate.
I think of them to be about as difficult as an ollie, nut in a different way. Both tricks are a bit counter-intuitive to first-timers.
The trick to slappies is not to smash the board into the curb, but at the moment of impact lighten your front foot to allow the froth trucks to get on (and then the back foot). It’s a very fast, very subtle movement that you don’t catch by watching people do them.