but it seems like there has to be some kind of technique here watch this video of parks he is olling a good 3 1/2 to 4 feet i see he does suck in his knees alot about i cant get no where near that. if i press down with my back foot then about when it starts pushing me back up i pop it and i can just jump but still the same results? http://youtube.com/watch?v=iEAJNHABsjM
One thing that has helped my ollie's is to do a small ollie and then bounce harder into a bigger ollie. I don't know why but it helps me. Just keep practicing and you will get higher. I am trying to learn switch ollies right now and it feels like I am starting all over again. Good luck and keep at it.