Have a look at the following vids
They all use Pro-Jumps in them so really it's more about user ability! Even if you put on a pair of shining custom made Velocity Motion Stilts you still may only be able to jump very low if you haven't perfected your technique.
[youtube=425,350]xS-3dAMohRk[/youtube]
[youtube=425,350]9awkQxad6BM[/youtube]
[youtube=425,350]3QAGRGjqQZY[/youtube]