well it depends on what trick ur trying, but normally its the same process for every hippie. first it all happens in ur head. if u got an idea, u just think it trough. and most times u know. "yea that has to be possible". than the hardest part is done. u go to the park. adjust the rail hights, runway, get ur perfect marker. and then go for it, can take 5 mins, but also 2 hours. doesnt matter. if u know its possible,ur not gonna stop.
as example: my noseslide nollie flip out on the polejam spot.
set everything up, trying so long till i get a really close one, that i can let the rail at that hieght. after like 20min i got it the 1st time, but i landed left to the polejam and bailed in the water. now u know theres no way back. all in all took like like 1,5hours. so to antwan: thats y i dont redid it. when i land in sideway grind
if u hav specifiv questions about tricks. ask